| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 36/39] dm writecache: remove BUG() and fail gracefully instead | Date | Thu, 10 Dec 2020 15:27:15 +0100 |
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From: Mike Snitzer <snitzer@redhat.com>
commit 857c4c0a8b2888d806f4308c58f59a6a81a1dee9 upstream.
Building on arch/s390/ results in this build error:
cc1: some warnings being treated as errors ../drivers/md/dm-writecache.c: In function 'persistent_memory_claim': ../drivers/md/dm-writecache.c:323:1: error: no return statement in function returning non-void [-Werror=return-type]
Fix this by replacing the BUG() with an -EOPNOTSUPP return.
Fixes: 48debafe4f2f ("dm: add writecache target") Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/md/dm-writecache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -318,7 +318,7 @@ err1: #else static int persistent_memory_claim(struct dm_writecache *wc) { - BUG(); + return -EOPNOTSUPP; } #endif
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