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authorWeston Andros Adamson <dros@primarydata.com>2014-08-08 11:00:56 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2014-08-22 18:04:43 -0400
commit94970014c46223cbcdfbfc67b89596a412f9e3dd (patch)
tree1bb2e91e8cde9558d67f18a6d84e8eb7abb11545
parentbfd484a5606d6a0379a0a2f04251b1e5c1f8995c (diff)
downloadlinux-94970014c46223cbcdfbfc67b89596a412f9e3dd.tar.gz
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>
-rw-r--r--fs/nfs/write.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 27715306f24b..e056f617adf2 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -480,8 +480,11 @@ try_again:
 
 	/* 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 {
 		/*