diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-01-25 14:12:54 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-01-25 16:50:07 +0300 |
| commit | 00f3a4113c73823e22bb30129d3ec0523706a158 (patch) | |
| tree | 487473b597e2583fa90e5f327afb0f07b728a90a /sound/firewire/oxfw/oxfw-hwdep.c | |
| parent | 62c2b4be0d858bb4d381868459fb8f82c3b58a21 (diff) | |
| download | linux-00f3a4113c73823e22bb30129d3ec0523706a158.tar.xz | |
ALSA: oxfw: remove an unnecessary condition in hwdep_read()
Smatch complains that "count" isn't clamped properly and
"oxfw->dev_lock_changed" is false then it leads to an information
leak. But it turns out that "oxfw->dev_lock_changed" is always
set and the condition can be removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/YA6ntkBxT/4DJ4YK@mwanda
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/oxfw/oxfw-hwdep.c')
| -rw-r--r-- | sound/firewire/oxfw/oxfw-hwdep.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/sound/firewire/oxfw/oxfw-hwdep.c b/sound/firewire/oxfw/oxfw-hwdep.c index 9e1b3e151bad..a0fe99618554 100644 --- a/sound/firewire/oxfw/oxfw-hwdep.c +++ b/sound/firewire/oxfw/oxfw-hwdep.c @@ -35,13 +35,11 @@ static long hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, } memset(&event, 0, sizeof(event)); - if (oxfw->dev_lock_changed) { - event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; - event.lock_status.status = (oxfw->dev_lock_count > 0); - oxfw->dev_lock_changed = false; + event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; + event.lock_status.status = (oxfw->dev_lock_count > 0); + oxfw->dev_lock_changed = false; - count = min_t(long, count, sizeof(event.lock_status)); - } + count = min_t(long, count, sizeof(event.lock_status)); spin_unlock_irq(&oxfw->lock); |