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authorTianjia Zhang <tianjia.zhang@linux.alibaba.com>2021-02-24 23:04:46 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-25 00:38:30 +0300
commitdbf53f7597be11ffc18b16444a1ffc7d7b76746e (patch)
treededd90151ff5f92fdab5044971f81d717aa6f4e0 /mm/mprotect.c
parent8abb50c76b484e8d8dc355c092170c37b5f832f5 (diff)
downloadlinux-dbf53f7597be11ffc18b16444a1ffc7d7b76746e.tar.xz
mm/mprotect.c: optimize error detection in do_mprotect_pkey()
Obviously, the error variable detection of the if statement is for the mprotect callback function, so it is also put into the scope of calling callbck. This is a cleanup which makes this site consistent with the rest of this function's error handling. Link: https://lkml.kernel.org/r/20210118133310.98375-1-tianjia.zhang@linux.alibaba.com Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Reported-by: Jia Zhang <zhang.jia@linux.alibaba.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mprotect.c')
-rw-r--r--mm/mprotect.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c
index ab709023e9aa..94188df1ee55 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -617,10 +617,11 @@ static int do_mprotect_pkey(unsigned long start, size_t len,
if (tmp > end)
tmp = end;
- if (vma->vm_ops && vma->vm_ops->mprotect)
+ if (vma->vm_ops && vma->vm_ops->mprotect) {
error = vma->vm_ops->mprotect(vma, nstart, tmp, newflags);
- if (error)
- goto out;
+ if (error)
+ goto out;
+ }
error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
if (error)