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authormajianpeng <majianpeng@gmail.com>2013-07-16 19:36:21 +0800
committerSage Weil <sage@inktank.com>2013-08-09 17:49:39 -0700
commit494ddd11be3e2621096bb425eed2886f8e8446d4 (patch)
tree5864a4be34d680b914cdfac5a3348728e5d8f9a0 /fs/ceph/ioctl.c
parent8b8cf8917f9b5d74e04f281272d8719ce335a497 (diff)
ceph: Don't forget the 'up_read(&osdc->map_sem)' if met error.
CC: stable@vger.kernel.org Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Reviewed-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'fs/ceph/ioctl.c')
-rw-r--r--fs/ceph/ioctl.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index e0b4ef31d3c..a5ce62eb780 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -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);