From 00f3a4113c73823e22bb30129d3ec0523706a158 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 25 Jan 2021 14:12:54 +0300 Subject: [PATCH] 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 Acked-by: Takashi Sakamoto Link: https://lore.kernel.org/r/YA6ntkBxT/4DJ4YK@mwanda Signed-off-by: Takashi Iwai --- sound/firewire/oxfw/oxfw-hwdep.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/sound/firewire/oxfw/oxfw-hwdep.c b/sound/firewire/oxfw/oxfw-hwdep.c index 9e1b3e1..a0fe996 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); -- 2.7.4