This was detected by the smatch static analyzer. Fixes: commit 2a842acab109 ("block: introduce new block status code type") Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Hannes Reinecke <hare@xxxxxxxx> Cc: Ming Lei <ming.lei@xxxxxxxxxx> --- block/blk-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 2e02314ea331..3c18ea60cb1c 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -169,7 +169,7 @@ int blk_status_to_errno(blk_status_t status) { int idx = (__force int)status; - if (WARN_ON_ONCE(idx > ARRAY_SIZE(blk_errors))) + if (WARN_ON_ONCE(idx >= ARRAY_SIZE(blk_errors))) return -EIO; return blk_errors[idx].errno; } @@ -179,7 +179,7 @@ static void print_req_error(struct request *req, blk_status_t status) { int idx = (__force int)status; - if (WARN_ON_ONCE(idx > ARRAY_SIZE(blk_errors))) + if (WARN_ON_ONCE(idx >= ARRAY_SIZE(blk_errors))) return; printk_ratelimited(KERN_ERR "%s: %s error, dev %s, sector %llu\n", -- 2.13.1