Clang warns:
drivers/misc/sgi-xp/xpc_partition.c:73:14: warning: variable 'buf' is
uninitialized when used within its own initialization [-Wuninitialized]
void *buf = buf;
~~~ ^~~
1 warning generated.
Initialize it to NULL, which is more deterministic.
Fixes: 279290294662 ("[IA64-SGI] cleanup the way XPC locates the reserved page")
Link: https://github.com/ClangBuiltLinux/linux/issues/466
Suggested-by: Stephen Hines <srhi...@google.com>
Signed-off-by: Nathan Chancellor <natechancel...@gmail.com>
---
Thanks Steve for the suggestion, don't know why that never crossed my
mind...
I tried to follow buf all the way down in get_partition_rsvd_page to see
if there would be any dereferences and I didn't see any but I could
have easily missed something.
drivers/misc/sgi-xp/xpc_partition.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/sgi-xp/xpc_partition.c
b/drivers/misc/sgi-xp/xpc_partition.c
index 3eba1c420cc0..782ce95d3f17 100644
--- a/drivers/misc/sgi-xp/xpc_partition.c
+++ b/drivers/misc/sgi-xp/xpc_partition.c
@@ -70,7 +70,7 @@ xpc_get_rsvd_page_pa(int nasid)
unsigned long rp_pa = nasid; /* seed with nasid */
size_t len = 0;
size_t buf_len = 0;
- void *buf = buf;
+ void *buf = NULL;
void *buf_base = NULL;
enum xp_retval (*get_partition_rsvd_page_pa)
(void *, u64 *, unsigned long *, size_t *) =
--
2.22.0.rc1
