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authorTsutomu Itoh <t-itoh@jp.fujitsu.com>2012-02-16 10:11:40 +0900
committerDavid Sterba <dsterba@suse.cz>2012-02-16 17:23:16 +0100
commit013bd4c336ad0d30e9e41f9cff0dbc1858934e75 (patch)
treef605d1160c95e3e82016ca8a81e6e1c3af2b7cba /fs
parent12fc9d0923ca70ae8960bccebac09d5c12f8c4d4 (diff)
downloadlinux-013bd4c336ad0d30e9e41f9cff0dbc1858934e75.tar.bz2
Btrfs: fix return value check of extent_io_ops
This patch adds the check on the return value of extent_io_ops. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/extent_io.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 89ba79fb945c..b05d35a7c0f1 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2154,9 +2154,10 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page,
"this_mirror=%d, num_copies=%d, in_validation=%d\n", read_mode,
failrec->this_mirror, num_copies, failrec->in_validation);
- tree->ops->submit_bio_hook(inode, read_mode, bio, failrec->this_mirror,
- failrec->bio_flags, 0);
- return 0;
+ ret = tree->ops->submit_bio_hook(inode, read_mode, bio,
+ failrec->this_mirror,
+ failrec->bio_flags, 0);
+ return ret;
}
/* lots and lots of room for performance fixes in the end_bio funcs */
@@ -2790,9 +2791,12 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
delalloc_start = delalloc_end + 1;
continue;
}
- tree->ops->fill_delalloc(inode, page, delalloc_start,
- delalloc_end, &page_started,
- &nr_written);
+ ret = tree->ops->fill_delalloc(inode, page,
+ delalloc_start,
+ delalloc_end,
+ &page_started,
+ &nr_written);
+ BUG_ON(ret);
/*
* delalloc_end is already one less than the total
* length, so we don't subtract one from