Commit a1d8d9a7 authored by Theodore Ts'o's avatar Theodore Ts'o
Browse files

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: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 5dc23bdd

fs/ext4/page-io.c

+2 −0
Original line number Diff line number Diff line
@@ -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;