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Subject[PATCH] BTRFS: Free inode mutex on lseek error
Date
From: Andi Kleen <ak@linux.intel.com>

Introduced with b26751575a9aa55fd6dbf3febde3ff06dfadc44f

Cc: josef@redhat.com
Cc: chris.mason@oracle.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
fs/btrfs/file.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 658d669..8791613 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1798,16 +1798,15 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
case SEEK_DATA:
case SEEK_HOLE:
ret = find_desired_extent(inode, &offset, origin);
- if (ret) {
- mutex_unlock(&inode->i_mutex);
- return ret;
- }
+ if (ret)
+ goto error;
}

+ ret = -EINVAL;
if (offset < 0 && !(file->f_mode & FMODE_UNSIGNED_OFFSET))
- return -EINVAL;
+ goto error;
if (offset > inode->i_sb->s_maxbytes)
- return -EINVAL;
+ goto error;

/* Special lock needed here? */
if (offset != file->f_pos) {
@@ -1817,6 +1816,9 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
out:
mutex_unlock(&inode->i_mutex);
return offset;
+error:
+ mutex_unlock(&inode->i_mutex);
+ return ret;
}

const struct file_operations btrfs_file_operations = {
--
1.7.4.4


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