CC: [email protected] CC: [email protected] CC: [email protected] TO: Mark Rutland <[email protected]> CC: Peter Zijlstra <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fa36bbe6d43f3bbce1f10a187e153587c7584d83 commit: fc63a6e08a8c97a3dc3a6f2e1946b949b9a6c2d3 locking/atomic: arm: move to ARCH_ATOMIC date: 7 months ago :::::: branch date: 4 hours ago :::::: commit date: 7 months ago config: arm-randconfig-c002-20211215 (https://download.01.org/0day-ci/archive/20211217/[email protected]/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dd245bab9fbb364faa1581e4f92ba3119a872fba) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fc63a6e08a8c97a3dc3a6f2e1946b949b9a6c2d3 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout fc63a6e08a8c97a3dc3a6f2e1946b949b9a6c2d3 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:733:6: note: 'min_period_size' is 0 if (min_period_size) { ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:733:2: note: '?' condition is false if (min_period_size) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ sound/core/oss/pcm_oss.c:733:2: note: Taking false branch if (min_period_size) { ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ sound/core/oss/pcm_oss.c:742:2: note: Assuming 'max_period_size' is not equal to 0 if (max_period_size) { ^ include/linux/compiler.h:56:45: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ sound/core/oss/pcm_oss.c:742:2: note: '?' condition is false if (max_period_size) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:742:6: note: 'max_period_size' is not equal to 0 if (max_period_size) { ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:742:2: note: '?' condition is true if (max_period_size) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ sound/core/oss/pcm_oss.c:742:2: note: Taking true branch if (max_period_size) { ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ sound/core/oss/pcm_oss.c:744:21: note: '?' condition is false max_period_size = rounddown_pow_of_two(max_period_size); ^ include/linux/log2.h:193:2: note: expanded from macro 'rounddown_pow_of_two' __builtin_constant_p(n) ? ( \ ^ sound/core/oss/pcm_oss.c:744:21: note: Calling '__rounddown_pow_of_two' max_period_size = rounddown_pow_of_two(max_period_size); ^ include/linux/log2.h:195:2: note: expanded from macro 'rounddown_pow_of_two' __rounddown_pow_of_two(n) \ ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/log2.h:67:13: note: The result of the left shift is undefined due to shifting by '4294967295', which is greater or equal to the width of type 'unsigned long' return 1UL << (fls_long(n) - 1); ^ ~~~~~~~~~~~~~~~~~ >> sound/core/oss/pcm_oss.c:2377:3: warning: Assigned value is garbage or >> undefined [clang-analyzer-core.uninitialized.Assign] struct snd_pcm_substream *substream = pcm_oss_file->streams[cidx]; ^ sound/core/oss/pcm_oss.c:2396:2: note: Assuming 'rpcm_oss_file' is null if (rpcm_oss_file) ^ include/linux/compiler.h:56:45: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ sound/core/oss/pcm_oss.c:2396:2: note: '?' condition is false if (rpcm_oss_file) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:2396:6: note: 'rpcm_oss_file' is null if (rpcm_oss_file) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:2396:2: note: '?' condition is false if (rpcm_oss_file) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ sound/core/oss/pcm_oss.c:2396:2: note: Taking false branch if (rpcm_oss_file) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ sound/core/oss/pcm_oss.c:2399:17: note: Calling 'kzalloc' pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/slab.h:686:9: note: Storing uninitialized value return kmalloc(size, flags | __GFP_ZERO); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/core/oss/pcm_oss.c:2399:17: note: Returning from 'kzalloc' pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/core/oss/pcm_oss.c:2400:6: note: Assuming 'pcm_oss_file' is not equal to null if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ sound/core/oss/pcm_oss.c:2400:2: note: '?' condition is false if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:2400:6: note: 'pcm_oss_file' is not equal to null if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:2400:2: note: '?' condition is false if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ -- ^~~~ sound/core/oss/pcm_oss.c:2421:3: note: '?' condition is false if (err < 0) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:2421:7: note: 'err' is < 0 if (err < 0) { ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:2421:3: note: '?' condition is true if (err < 0) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ sound/core/oss/pcm_oss.c:2421:3: note: Taking true branch if (err < 0) { ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ sound/core/oss/pcm_oss.c:2422:4: note: Calling 'snd_pcm_oss_release_file' snd_pcm_oss_release_file(pcm_oss_file); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/core/oss/pcm_oss.c:2374:7: note: 'pcm_oss_file' is non-null if (!pcm_oss_file) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ sound/core/oss/pcm_oss.c:2374:2: note: '?' condition is false if (!pcm_oss_file) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:2374:7: note: 'pcm_oss_file' is non-null if (!pcm_oss_file) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:2374:2: note: '?' condition is false if (!pcm_oss_file) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ sound/core/oss/pcm_oss.c:2374:2: note: Taking false branch if (!pcm_oss_file) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ sound/core/oss/pcm_oss.c:2376:7: note: The value 0 is assigned to 'cidx' for (cidx = 0; cidx < 2; ++cidx) { ^~~~~~~~ sound/core/oss/pcm_oss.c:2376:2: note: Loop condition is true. Entering loop body for (cidx = 0; cidx < 2; ++cidx) { ^ sound/core/oss/pcm_oss.c:2377:3: note: Assigned value is garbage or undefined struct snd_pcm_substream *substream = pcm_oss_file->streams[cidx]; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> sound/core/oss/pcm_oss.c:2430:6: warning: Branch condition evaluates to a >> garbage value [clang-analyzer-core.uninitialized.Branch] if (!pcm_oss_file->streams[0] && !pcm_oss_file->streams[1]) { ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ sound/core/oss/pcm_oss.c:2396:2: note: Assuming 'rpcm_oss_file' is null if (rpcm_oss_file) ^ include/linux/compiler.h:56:45: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ sound/core/oss/pcm_oss.c:2396:2: note: '?' condition is false if (rpcm_oss_file) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:2396:6: note: 'rpcm_oss_file' is null if (rpcm_oss_file) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:2396:2: note: '?' condition is false if (rpcm_oss_file) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ sound/core/oss/pcm_oss.c:2396:2: note: Taking false branch if (rpcm_oss_file) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ sound/core/oss/pcm_oss.c:2399:17: note: Calling 'kzalloc' pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/slab.h:686:9: note: Storing uninitialized value return kmalloc(size, flags | __GFP_ZERO); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/core/oss/pcm_oss.c:2399:17: note: Returning from 'kzalloc' pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/core/oss/pcm_oss.c:2400:6: note: Assuming 'pcm_oss_file' is not equal to null if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ sound/core/oss/pcm_oss.c:2400:2: note: '?' condition is false if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ sound/core/oss/pcm_oss.c:2400:6: note: 'pcm_oss_file' is not equal to null if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ sound/core/oss/pcm_oss.c:2400:2: note: '?' condition is false if (pcm_oss_file == NULL) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) vim +2377 sound/core/oss/pcm_oss.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 2370 6ac77bc180fbd9 Takashi Iwai 2005-11-17 2371 static int snd_pcm_oss_release_file(struct snd_pcm_oss_file *pcm_oss_file) ^1da177e4c3f41 Linus Torvalds 2005-04-16 2372 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 2373 int cidx; 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 2374 if (!pcm_oss_file) 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 2375 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2376 for (cidx = 0; cidx < 2; ++cidx) { 6ac77bc180fbd9 Takashi Iwai 2005-11-17 @2377 struct snd_pcm_substream *substream = pcm_oss_file->streams[cidx]; 3bf75f9b90c981 Takashi Iwai 2006-03-27 2378 if (substream) ^1da177e4c3f41 Linus Torvalds 2005-04-16 2379 snd_pcm_release_substream(substream); ^1da177e4c3f41 Linus Torvalds 2005-04-16 2380 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 2381 kfree(pcm_oss_file); ^1da177e4c3f41 Linus Torvalds 2005-04-16 2382 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2383 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 2384 ^1da177e4c3f41 Linus Torvalds 2005-04-16 2385 static int snd_pcm_oss_open_file(struct file *file, 6ac77bc180fbd9 Takashi Iwai 2005-11-17 2386 struct snd_pcm *pcm, 6ac77bc180fbd9 Takashi Iwai 2005-11-17 2387 struct snd_pcm_oss_file **rpcm_oss_file, ^1da177e4c3f41 Linus Torvalds 2005-04-16 2388 int minor, 060d77b9c04acd Takashi Iwai 2006-03-27 2389 struct snd_pcm_oss_setup *setup) ^1da177e4c3f41 Linus Torvalds 2005-04-16 2390 { 3bf75f9b90c981 Takashi Iwai 2006-03-27 2391 int idx, err; 6ac77bc180fbd9 Takashi Iwai 2005-11-17 2392 struct snd_pcm_oss_file *pcm_oss_file; 3bf75f9b90c981 Takashi Iwai 2006-03-27 2393 struct snd_pcm_substream *substream; aeb5d727062a02 Al Viro 2008-09-02 2394 fmode_t f_mode = file->f_mode; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2395 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 2396 if (rpcm_oss_file) ^1da177e4c3f41 Linus Torvalds 2005-04-16 2397 *rpcm_oss_file = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2398 ca2c0966562cfb Takashi Iwai 2005-09-09 2399 pcm_oss_file = kzalloc(sizeof(*pcm_oss_file), GFP_KERNEL); ^1da177e4c3f41 Linus Torvalds 2005-04-16 2400 if (pcm_oss_file == NULL) ^1da177e4c3f41 Linus Torvalds 2005-04-16 2401 return -ENOMEM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2402 ^1da177e4c3f41 Linus Torvalds 2005-04-16 2403 if ((f_mode & (FMODE_WRITE|FMODE_READ)) == (FMODE_WRITE|FMODE_READ) && ^1da177e4c3f41 Linus Torvalds 2005-04-16 2404 (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 2405 f_mode = FMODE_WRITE; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2406 0df63e44c3e315 Takashi Iwai 2006-04-28 2407 file->f_flags &= ~O_APPEND; 3bf75f9b90c981 Takashi Iwai 2006-03-27 2408 for (idx = 0; idx < 2; idx++) { 060d77b9c04acd Takashi Iwai 2006-03-27 2409 if (setup[idx].disable) 3bf75f9b90c981 Takashi Iwai 2006-03-27 2410 continue; 6cb53e7ed77d42 Takashi Iwai 2006-08-02 2411 if (! pcm->streams[idx].substream_count) 6cb53e7ed77d42 Takashi Iwai 2006-08-02 2412 continue; /* no matching substream */ 3bf75f9b90c981 Takashi Iwai 2006-03-27 2413 if (idx == SNDRV_PCM_STREAM_PLAYBACK) { 3bf75f9b90c981 Takashi Iwai 2006-03-27 2414 if (! (f_mode & FMODE_WRITE)) 3bf75f9b90c981 Takashi Iwai 2006-03-27 2415 continue; 3bf75f9b90c981 Takashi Iwai 2006-03-27 2416 } else { 3bf75f9b90c981 Takashi Iwai 2006-03-27 2417 if (! (f_mode & FMODE_READ)) 3bf75f9b90c981 Takashi Iwai 2006-03-27 2418 continue; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2419 } 3bf75f9b90c981 Takashi Iwai 2006-03-27 2420 err = snd_pcm_open_substream(pcm, idx, file, &substream); ^1da177e4c3f41 Linus Torvalds 2005-04-16 2421 if (err < 0) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 2422 snd_pcm_oss_release_file(pcm_oss_file); ^1da177e4c3f41 Linus Torvalds 2005-04-16 2423 return err; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2424 } 3bf75f9b90c981 Takashi Iwai 2006-03-27 2425 3bf75f9b90c981 Takashi Iwai 2006-03-27 2426 pcm_oss_file->streams[idx] = substream; 060d77b9c04acd Takashi Iwai 2006-03-27 2427 snd_pcm_oss_init_substream(substream, &setup[idx], minor); ^1da177e4c3f41 Linus Torvalds 2005-04-16 2428 } 3bf75f9b90c981 Takashi Iwai 2006-03-27 2429 bbdc1b7dbe4157 OGAWA Hirofumi 2006-04-06 @2430 if (!pcm_oss_file->streams[0] && !pcm_oss_file->streams[1]) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 2431 snd_pcm_oss_release_file(pcm_oss_file); 3bf75f9b90c981 Takashi Iwai 2006-03-27 2432 return -EINVAL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2433 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 2434 ^1da177e4c3f41 Linus Torvalds 2005-04-16 2435 file->private_data = pcm_oss_file; 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 2436 if (rpcm_oss_file) ^1da177e4c3f41 Linus Torvalds 2005-04-16 2437 *rpcm_oss_file = pcm_oss_file; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2438 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 2439 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 2440 :::::: The code at line 2377 was first introduced by commit :::::: 6ac77bc180fbd985988015020c2e2347e802959d [ALSA] Remove xxx_t typedefs: PCM OSS-emulation :::::: TO: Takashi Iwai <[email protected]> :::::: CC: Jaroslav Kysela <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
