From: Zhang Yanfei <[email protected]> Since get_command_line returns dynamically allocated memory, it is easy for the caller to forget freeing the memory. Here fixes a memory leak caused by this function.
Signed-off-by: Zhang Yanfei <[email protected]> --- kexec/arch/ppc/kexec-uImage-ppc.c | 12 ++++++++---- 1 files changed, 8 insertions(+), 4 deletions(-) diff --git a/kexec/arch/ppc/kexec-uImage-ppc.c b/kexec/arch/ppc/kexec-uImage-ppc.c index fd8959c..c4d39f2 100644 --- a/kexec/arch/ppc/kexec-uImage-ppc.c +++ b/kexec/arch/ppc/kexec-uImage-ppc.c @@ -81,6 +81,7 @@ static int ppc_load_bare_bits(int argc, char **argv, const char *buf, unsigned int ep) { char *command_line, *cmdline_buf, *crash_cmdline; + char *tmp_cmdline; int command_line_len; char *dtb; unsigned int addr; @@ -101,6 +102,7 @@ static int ppc_load_bare_bits(int argc, char **argv, const char *buf, cmdline_buf = NULL; command_line = NULL; + tmp_cmdline = NULL; dtb = NULL; max_addr = LONG_MAX; @@ -115,7 +117,7 @@ static int ppc_load_bare_bits(int argc, char **argv, const char *buf, usage(); return -1; case OPT_APPEND: - command_line = optarg; + tmp_cmdline = optarg; break; case OPT_RAMDISK: @@ -141,12 +143,12 @@ static int ppc_load_bare_bits(int argc, char **argv, const char *buf, die("Can't specify --ramdisk or --initrd with --reuseinitrd\n"); command_line_len = 0; - if (command_line) { - command_line_len = strlen(command_line) + 1; + if (tmp_cmdline) { + command_line = tmp_cmdline; } else { command_line = get_command_line(); - command_line_len = strlen(command_line) + 1; } + command_line_len = strlen(command_line) + 1; fixup_nodes[cur_fixup] = NULL; @@ -295,6 +297,8 @@ out2: free(cmdline_buf); out: free(crash_cmdline); + if (!tmp_cmdline) + free(command_line); if (error_msg) die(error_msg); return ret; -- 1.7.1 _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
