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| author | liubo | 2011-01-26 07:21:39 +0100 |
|---|---|---|
| committer | Chris Mason | 2011-01-28 22:40:36 +0100 |
| commit | 6b82ce8d824bd46053e46a895876cde39d9026e4 (patch) | |
| tree | 756e869f3fc9a7baa320ca671d0174c5430c091a /fs/btrfs/extent_io.c | |
| parent | Merge branch 'bug-fixes' of git://repo.or.cz/linux-btrfs-devel into btrfs-38 (diff) | |
| download | kernel-qcow2-linux-6b82ce8d824bd46053e46a895876cde39d9026e4.tar.gz kernel-qcow2-linux-6b82ce8d824bd46053e46a895876cde39d9026e4.tar.xz kernel-qcow2-linux-6b82ce8d824bd46053e46a895876cde39d9026e4.zip | |
btrfs: fix uncheck memory allocation in btrfs_submit_compressed_read
btrfs_submit_compressed_read() is lack of memory allocation checks and
corresponding error route.
After this fix, if it comes to "no memory" case, errno will be returned
to userland step by step, and tell users this operation cannot go on.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 8b8d3d99ae68..6411ed6ca449 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -1865,7 +1865,7 @@ static int submit_one_bio(int rw, struct bio *bio, int mirror_num, bio_get(bio); if (tree->ops && tree->ops->submit_bio_hook) - tree->ops->submit_bio_hook(page->mapping->host, rw, bio, + ret = tree->ops->submit_bio_hook(page->mapping->host, rw, bio, mirror_num, bio_flags, start); else submit_bio(rw, bio); @@ -2126,7 +2126,7 @@ int extent_read_full_page(struct extent_io_tree *tree, struct page *page, ret = __extent_read_full_page(tree, page, get_extent, &bio, 0, &bio_flags); if (bio) - submit_one_bio(READ, bio, 0, bio_flags); + ret = submit_one_bio(READ, bio, 0, bio_flags); return ret; } |