[PATCH] BTRFS: Fix lseek return value for error

From: Andi Kleen
Date: Sat Aug 20 2011 - 08:49:47 EST


Introduced by 9a4327ca1f45f82edad7dc0a4e52ce9316e0950c

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index e7872e4..c6e493f 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1814,19 +1814,17 @@ 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;
}

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

/* Special lock needed here? */
@@ -1837,6 +1835,9 @@ 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 = {
--
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