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authorPaul Mundt <lethal@linux-sh.org>2012-05-10 11:51:07 +0900
committerPaul Mundt <lethal@linux-sh.org>2012-05-10 11:51:07 +0900
commit15f99cbd071aa402e113d342448603344a337046 (patch)
tree56f98892d1bd38029988eb8931e2321ef7e79aa0 /fs/btrfs/ioctl.c
parentb2212ea41dacda8cce0e7681a3a6ccc76c63802e (diff)
parent41797f75486d8ca3b98d7658c2a506ac7879a8e5 (diff)
Merge branch 'sh/rsk-updates' into sh-latest
Conflicts: arch/sh/Kconfig Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r--fs/btrfs/ioctl.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 18cc23d164a..14f8e1faa46 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2262,7 +2262,10 @@ static long btrfs_ioctl_dev_info(struct btrfs_root *root, void __user *arg)
di_args->bytes_used = dev->bytes_used;
di_args->total_bytes = dev->total_bytes;
memcpy(di_args->uuid, dev->uuid, sizeof(di_args->uuid));
- strncpy(di_args->path, dev->name, sizeof(di_args->path));
+ if (dev->name)
+ strncpy(di_args->path, dev->name, sizeof(di_args->path));
+ else
+ di_args->path[0] = '\0';
out:
if (ret == 0 && copy_to_user(arg, di_args, sizeof(*di_args)))