From 454c640d93822cd31cf59eb89d77e04a89fd9ec9 Mon Sep 17 00:00:00 2001
From: Jeff Liu <jeff.liu@oracle.com>
Date: Wed, 14 Sep 2011 14:11:21 +0800
Subject: [PATCH] --- yaml --- r: 274662 b: refs/heads/master c:
 83c8c9bde0add721f7509aa446455183b040b931 h: refs/heads/master v: v3

---
 [refs]                 |  2 +-
 trunk/fs/btrfs/super.c | 10 ++++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index 62fe7e3efc7a..b996875ea100 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5ca496604b5975d371bb669ee6c2394bcbea818f
+refs/heads/master: 83c8c9bde0add721f7509aa446455183b040b931
diff --git a/trunk/fs/btrfs/super.c b/trunk/fs/btrfs/super.c
index 266d1f35465d..09ce951666ea 100644
--- a/trunk/fs/btrfs/super.c
+++ b/trunk/fs/btrfs/super.c
@@ -419,7 +419,7 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags,
 		u64 *subvol_rootid, struct btrfs_fs_devices **fs_devices)
 {
 	substring_t args[MAX_OPT_ARGS];
-	char *opts, *orig, *p;
+	char *device_name, *opts, *orig, *p;
 	int error = 0;
 	int intarg;
 
@@ -470,8 +470,14 @@ static int btrfs_parse_early_options(const char *options, fmode_t flags,
 			}
 			break;
 		case Opt_device:
-			error = btrfs_scan_one_device(match_strdup(&args[0]),
+			device_name = match_strdup(&args[0]);
+			if (!device_name) {
+				error = -ENOMEM;
+				goto out;
+			}
+			error = btrfs_scan_one_device(device_name,
 					flags, holder, fs_devices);
+			kfree(device_name);
 			if (error)
 				goto out;
 			break;