nfs: fix error handling in lock_and_join_requests
This fixes handling of errors from nfs_page_group_lock in
nfs_lock_and_join_requests. It now releases the inode lock and the
reference to the head request.
Reported-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 2771530..e056f61 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -480,8 +480,11 @@
/* lock each request in the page group */
ret = nfs_page_group_lock(head, true);
- if (ret < 0)
+ if (ret < 0) {
+ spin_unlock(&inode->i_lock);
+ nfs_release_request(head);
return ERR_PTR(ret);
+ }
subreq = head;
do {
/*
