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ALSA: info: Return -ENODEV instead of -EFAULT in alloc_info_private()

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When try_module_get() fails in alloc_info_private(), the owning module is
going away and the device is no longer usable, so -EFAULT ("bad address")
is the wrong error. Return -ENODEV, matching the other -ENODEV path in the
same function.
This changes the errno reported to userspace on this rare race.
No other behaviour changes.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260707084506.718583-4-phucduc.bui@gmail.com
This commit is contained in:
bui duc phuc 2026-07-07 15:45:03 +07:00 committed by Takashi Iwai
parent c49e88ea6c
commit 52f15bf51b
1 changed files with 1 additions and 1 deletions
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2
sound/core/info.c
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@ -78,7 +78,7 @@ static int alloc_info_private(struct snd_info_entry *entry,
if (!entry || !entry->p)
return -ENODEV;
if (!try_module_get(entry->module))
return -EFAULT;
return -ENODEV;
data = kzalloc_obj(*data);
if (!data) {
module_put(entry->module);