[patch v2] Btrfs: silence a compiler warning

[Dan Carpenter]

Gcc warns that "ret" can be used uninitialized.  It can't actually be
used uninitialized because btrfs_num_copies() always returns 1 or more.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
v2: use the uninitialized_var() macro instead of initializing to 0.

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 064b29b..3bb3853 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -643,7 +643,7 @@ static struct btrfsic_dev_state 
*btrfsic_dev_state_hashtable_lookup(
 static int btrfsic_process_superblock(struct btrfsic_state *state,
                                      struct btrfs_fs_devices *fs_devices)
 {
-       int ret;
+       int uninitialized_var(ret);
        struct btrfs_super_block *selected_super;
        struct list_head *dev_head = &fs_devices->devices;
        struct btrfs_device *device;

signature.asc
Description: Digital signature