Commit 5c694129 authored by Kumar Amit Mehta's avatar Kumar Amit Mehta Committed by Kent Overstreet
Browse files

md: bcache: io.c: fix a potential NULL pointer dereference 



bio_alloc_bioset returns NULL on failure. This fix adds a missing check
for potential NULL pointer dereferencing.

Signed-off-by: default avatarKumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: default avatarKent Overstreet <koverstreet@google.com>
parent 9e895ace

drivers/md/bcache/io.c

+2 −0
Original line number Diff line number Diff line
@@ -97,6 +97,8 @@ struct bio *bch_bio_split(struct bio *bio, int sectors, 


	if (bio->bi_rw & REQ_DISCARD) {

		ret = bio_alloc_bioset(gfp, 1, bs);

		if (!ret)

			return NULL;

		idx = 0;

		goto out;

	}