Commit 857c4c0a authored Nov 13, 2020 by Mike Snitzer

dm writecache: remove BUG() and fail gracefully instead



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: 48debafe ("dm: add writecache target")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

parent e7b62418

drivers/md/dm-writecache.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -319,7 +319,7 @@ err1:
		#else
		static int persistent_memory_claim(struct dm_writecache *wc)
		{
		BUG();
		return -EOPNOTSUPP;
		}
		#endif

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