tree 30ff21ecad4f62726ac2a90dbb9cc6e60a5b9b95
parent b92e7e0daed31389ff5ad9f558ef1284c846f6ee
author Zhang Yanfei <zhangyanfei@cn.fujitsu.com> 1362013411 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1362021012 -0800

kexec: avoid freeing NULL pointer in image_crash_alloc()

Though there is no error if we free a NULL pointer, I think we could
avoid this behaviour.  Change the code a little in kimage_crash_alloc()
could avoid this kind of unnecessary free.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>