Commit 5bba87d6 authored Apr 08, 2015 by Yaniv Gardi Committed by Matt Wagantall May 30, 2015

scsi: ufs: fix a bug where accessing an array in invalid index



Add range check on tag statistics array index to avoid a potential
situation where the array index is out-of-bounds in case
TS_NOT_SUPPORTED is returned as the index.

Change-Id: Ib35fd0abe9553f6ea259efd2f98c7a4ef490d6ed
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>

parent c1ffaa93

drivers/scsi/ufs/ufshcd.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -91,6 +91,7 @@ static void ufshcd_update_tag_stats(struct ufs_hba *hba, int tag)

		WARN_ON(hba->ufs_stats.q_depth > hba->nutrs);
		rq_type = ufshcd_tag_req_type(rq);
		if (!(rq_type < 0 \|\| rq_type > TS_NUM_STATS))
		tag_stats[hba->ufs_stats.q_depth++][rq_type]++;
		}