Add i_write_mutex unlock on the error handling path in collapse_range().
Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
Signed-off-by: Ashish Sangwan <a.sangwan@xxxxxxxxxxx>
---
fs/ext4/extents.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index ee14768..0c93423 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5447,8 +5447,10 @@ int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len)
/* Write out all dirty pages */
ret = filemap_write_and_wait_range(inode->i_mapping, ioffset,
LLONG_MAX);
- if (ret)
+ if (ret) {
+ mutex_unlock(&EXT4_I(inode)->i_write_mutex);
return ret;
+ }
/* Take mutex lock */
mutex_lock(&inode->i_mutex);
--
1.7.11-rc0
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