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authorZhang Yanfei <zhangyanfei@cn.fujitsu.com>2013-02-28 05:03:31 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-28 07:10:12 +0400
commit8c333ac2e4946a673b54f974d75397c947569c29 (patch)
tree30ff21ecad4f62726ac2a90dbb9cc6e60a5b9b95 /block
parentb92e7e0daed31389ff5ad9f558ef1284c846f6ee (diff)
downloadlinux-8c333ac2e4946a673b54f974d75397c947569c29.tar.xz
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>
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