diff options
| author | Kumar Amit Mehta <gmate.amit@gmail.com> | 2013-05-28 00:31:15 -0700 |
|---|---|---|
| committer | Kent Overstreet <koverstreet@google.com> | 2013-06-26 17:06:19 -0700 |
| commit | 5c694129c8db6d89c9be109049a16510b2f70f6d (patch) | |
| tree | 9d6e5a0bf91285f28e89407c2367cf026dcf88ad | |
| parent | 9e895ace5d82df8929b16f58e9f515f6d54ab82d (diff) | |
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: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: Kent Overstreet <koverstreet@google.com>
| -rw-r--r-- | drivers/md/bcache/io.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c index 48efd4dea645..d285cd49104c 100644 --- a/drivers/md/bcache/io.c +++ b/drivers/md/bcache/io.c @@ -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; } |