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>
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 89ba79f..b05d35a 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2154,9 +2154,10 @@
"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 @@
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