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Btrfs: add missing error handling to read_tree_block

Message ID 1375227596-24884-1-git-send-email-fdmanana@gmail.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Filipe Manana July 30, 2013, 11:39 p.m. UTC 
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
---
 fs/btrfs/disk-io.c |    4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 254cdc8..b71e882 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1148,6 +1148,10 @@  struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
 		return NULL;
 
 	ret = btree_read_extent_buffer_pages(root, buf, 0, parent_transid);
+	if (ret) {
+		free_extent_buffer(buf);
+		return NULL;
+	}
 	return buf;
 
 }