[PATCH] drivers/md/raid6algos.c: fix a NULL dereference
This patch fixes a NULL dereference spotted by the Coverity checker. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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