Linux Sound subsystem development
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From: phucduc.bui@gmail.com
To: Cezary Rojewski <cezary.rojewski@intel.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	cassiogabrielcontato@gmail.com
Cc: Kees Cook <kees@kernel.org>, Dan Carpenter <error27@gmail.com>,
	Cen Zhang <zzzccc427@gmail.com>, Len Bao <len.bao@gmx.us>,
	Mehul Rao <mehulrao@gmail.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org,
	bui duc phuc <phucduc.bui@gmail.com>
Subject: [PATCH 0/6] Return -ENODEV instead of -EFAULT on module-get failure
Date: Mon,  6 Jul 2026 15:49:44 +0700	[thread overview]
Message-ID: <20260706084950.49331-1-phucduc.bui@gmail.com> (raw)

From: bui duc phuc <phucduc.bui@gmail.com>

Hi all,

Several ALSA open/allocate paths call try_module_get() on the owning card
module and return -EFAULT when it fails. However, try_module_get() fails 
when the module is no longer live (i.e. it is going away), meaning the 
device is no longer usable.
This series updates only those paths, making the error code consistent
with the existing "device unavailable" checks in the same functions.
Other -EFAULT returns are left unchanged.
No functional change is intended.

Best regards, 
Phuc

bui duc phuc (6):
  ALSA: control: Return -ENODEV instead of -EFAULT in snd_ctl_open()
  ALSA: hwdep: Return -ENODEV instead of -EFAULT in snd_hwdep_open()
  ALSA: info: Return -ENODEV instead of -EFAULT in alloc_info_private()
  ALSA: mixer: oss: Return -ENODEV instead of -EFAULT in
    snd_mixer_oss_open()
  ALSA: pcm: oss: Return -ENODEV instead of -EFAULT in
    snd_pcm_oss_open()
  ALSA: pcm: Return -ENODEV instead of -EFAULT in snd_pcm_open()

 sound/core/control.c       | 3 +--
 sound/core/hwdep.c         | 2 +-
 sound/core/info.c          | 2 +-
 sound/core/oss/mixer_oss.c | 2 +-
 sound/core/oss/pcm_oss.c   | 2 +-
 sound/core/pcm_native.c    | 2 +-
 6 files changed, 6 insertions(+), 7 deletions(-)

-- 
2.43.0


             reply	other threads:[~2026-07-06  8:50 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-06  8:49 phucduc.bui [this message]
2026-07-06  8:49 ` [PATCH 1/6] ALSA: control: Return -ENODEV instead of -EFAULT in snd_ctl_open() phucduc.bui
2026-07-06  9:35   ` Cezary Rojewski
2026-07-06  9:40     ` Bui Duc Phuc
2026-07-06  8:49 ` [PATCH 2/6] ALSA: hwdep: Return -ENODEV instead of -EFAULT in snd_hwdep_open() phucduc.bui
2026-07-06  8:49 ` [PATCH 3/6] ALSA: info: Return -ENODEV instead of -EFAULT in alloc_info_private() phucduc.bui
2026-07-06  8:49 ` [PATCH 4/6] ALSA: mixer: oss: Return -ENODEV instead of -EFAULT in snd_mixer_oss_open() phucduc.bui
2026-07-06  8:49 ` [PATCH 5/6] ALSA: pcm: oss: Return -ENODEV instead of -EFAULT in snd_pcm_oss_open() phucduc.bui
2026-07-06  8:49 ` [PATCH 6/6] ALSA: pcm: Return -ENODEV instead of -EFAULT in snd_pcm_open() phucduc.bui
2026-07-06  9:42 ` [PATCH 0/6] Return -ENODEV instead of -EFAULT on module-get failure Cezary Rojewski
2026-07-06 12:31   ` Bui Duc Phuc
2026-07-06 13:13     ` Cezary Rojewski
2026-07-06 13:26       ` Takashi Iwai

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