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kexec: prevent double free on image allocation failure
If kimage_normal_alloc() fails to initialize an allocated kimage, it will free the image but would still set 'rimage', as a result kexec_load will try to free it again. This would explode as part of the freeing process is accessing internal members which point to uninitialized memory. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -242,8 +242,6 @@ static int kimage_normal_alloc(struct kimage **rimage, unsigned long entry,
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if (result)
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goto out;
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*rimage = image;
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/*
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* Find a location for the control code buffer, and add it
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* the vector of segments so that it's pages will also be
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