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authorJason Gunthorpe <jgg@mellanox.com>2019-11-06 06:16:37 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2019-11-06 17:47:50 +0100
commitdf2ec7641bd03624a7e54cc926e8c3f75c7a84d8 (patch)
tree61062f8a0173a88d5da475b9d8d7ec4fd0163d65 /mm
parentocfs2: protect extent tree in ocfs2_prepare_inode_for_write() (diff)
downloadlinux-df2ec7641bd03624a7e54cc926e8c3f75c7a84d8.tar.xz
linux-df2ec7641bd03624a7e54cc926e8c3f75c7a84d8.zip
mm/mmu_notifiers: use the right return code for WARN_ON
The return code from the op callback is actually in _ret, while the WARN_ON was checking ret which causes it to misfire. Link: http://lkml.kernel.org/r/20191025175502.GA31127@ziepe.ca Fixes: 8402ce61bec2 ("mm/mmu_notifiers: check if mmu notifier callbacks are allowed to fail") Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/mmu_notifier.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 7fde88695f35..9a889e456168 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -180,7 +180,7 @@ int __mmu_notifier_invalidate_range_start(struct mmu_notifier_range *range)
mn->ops->invalidate_range_start, _ret,
!mmu_notifier_range_blockable(range) ? "non-" : "");
WARN_ON(mmu_notifier_range_blockable(range) ||
- ret != -EAGAIN);
+ _ret != -EAGAIN);
ret = _ret;
}
}