We will implement the function that the filesystem scan all the devices
in the system and build the device set for btrfs. In this case, we needn't
get btrfs_fs_devices when adding a device into list. This patch changes
device_add_list and implement this feature.
Signed-off-by: Miao Xie <mi...@cn.fujitsu.com>
---
fs/btrfs/volumes.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 1aacf5f..740a4f9 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -568,7 +568,8 @@ static noinline int device_list_add(const char *path,
if (!fs_devices->opened)
device->generation = found_transid;
- *fs_devices_ret = fs_devices;
+ if (fs_devices_ret)
+ *fs_devices_ret = fs_devices;
return ret;
}
--
1.9.3
--
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