ceph: Don't forget the 'up_read(&osdc->map_sem)' if met error.

Signed-off-by Jianpeng Ma <[email protected]>

---
 fs/ceph/ioctl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

fs/ceph/ioctl.c +3 -1

index e0b4ef3..a5ce62e 100644
@@ -196,8 +196,10 @@ static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg)
 	r = ceph_calc_file_object_mapping(&ci->i_layout, dl.file_offset, len,
 					  &dl.object_no, &dl.object_offset,
 					  &olen);
-	if (r < 0)
+	if (r < 0) {
+		up_read(&osdc->map_sem);
 		return -EIO;
+	}
 	dl.file_offset -= dl.object_offset;
 	dl.object_size = ceph_file_layout_object_size(ci->i_layout);
 	dl.block_size = ceph_file_layout_su(ci->i_layout);

Signature · 1 line

1.8.1.2