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authorDan Carpenter <dan.carpenter@oracle.com>2021-06-18 16:45:22 +0300
committerJens Axboe <axboe@kernel.dk>2021-06-18 08:53:35 -0600
commit52d7e288444906aa5c99888e80a9cc1a1423ed92 (patch)
treee5debba8501c039d3dd350bedd21d06add4ab7b4 /include/linux/blk-mq.h
parente42cfb1da0bf33c313318da201730324c423351d (diff)
blk-mq: fix an IS_ERR() vs NULL bug
The __blk_mq_alloc_disk() function doesn't return NULLs it returns error pointers. Fixes: b461dfc49eb6 ("blk-mq: add the blk_mq_alloc_disk APIs") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/YMyjci35WBqrtqG+@mwanda Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r--include/linux/blk-mq.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 02a4aab0aeac..fd2de2b422ed 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -431,7 +431,7 @@ enum {
static struct lock_class_key __key; \
struct gendisk *__disk = __blk_mq_alloc_disk(set, queuedata); \
\
- if (__disk) \
+ if (!IS_ERR(__disk)) \
lockdep_init_map(&__disk->lockdep_map, \
"(bio completion)", &__key, 0); \
__disk; \