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| author | Theodore Ts'o <tytso@mit.edu> | 2013-06-06 10:18:22 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-06-06 10:18:22 -0400 |
| commit | a1d8d9a757cd46e044a3f6061c315eda14bf697e (patch) | |
| tree | 1f8cda247a0f1e0f6eb8346da151e64b5d46e0ed | |
| parent | 5dc23bdd5f846ef868e82f789dfd9b13093f9ba6 (diff) | |
ext4: add check to io_submit_init_bio
The bio_alloc() function can return NULL if the memory allocation
fails. So we need to check for this.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/page-io.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index ce8c15a7eabc..48786cdb5e6c 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -372,6 +372,8 @@ static int io_submit_init_bio(struct ext4_io_submit *io, struct bio *bio; bio = bio_alloc(GFP_NOIO, min(nvecs, BIO_MAX_PAGES)); + if (!bio) + return -ENOMEM; bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9); bio->bi_bdev = bh->b_bdev; bio->bi_end_io = ext4_end_bio; |