diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-05-18 13:13:33 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-05-18 13:13:33 -0300 |
| commit | 16ee6576e25b83806d26eb771138249fcfb5eddc (patch) | |
| tree | 7c717b80f28b5c59ba673dc00f2ca9bd0fc068d4 /fs/btrfs/ioctl.c | |
| parent | 16fa7e8200fb9066b77a3f27cbed8e4a9fc71998 (diff) | |
| parent | 9b63776fa3ca96c4ecda76f6fa947b7b0add66ac (diff) | |
Merge remote-tracking branch 'tip/perf/urgent' into perf/core
Merge reason: We are going to queue up a dependent patch:
"perf tools: Move parse event automated tests to separated object"
That depends on:
commit e7c72d8
perf tools: Add 'G' and 'H' modifiers to event parsing
Conflicts:
tools/perf/builtin-stat.c
Conflicted with the recent 'perf_target' patches when checking the
result of perf_evsel open routines to see if a retry is needed to cope
with older kernels where the exclude guest/host perf_event_attr bits
were not used.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 18cc23d164a8..14f8e1faa46e 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))) |