[ldv-project] [PATCH] sound: fix check for error condition of register_chrdev()
Takashi Iwai
tiwai at suse.de
Sat Nov 7 13:15:02 MSK 2015
On Fri, 06 Nov 2015 23:56:05 +0100,
Alexey Khoroshilov wrote:
>
> init_oss_soundcore() compares returned value of register_chrdev()
> with -1, while other error codes can be returned.
>
> Found by Linux Driver Verification project (linuxtesting.org).
>
> Signed-off-by: Alexey Khoroshilov <khoroshilov at ispras.ru>
Thanks, applied.
Takashi
> ---
> sound/sound_core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/sound/sound_core.c b/sound/sound_core.c
> index 11e953a1fa45..99b73c675743 100644
> --- a/sound/sound_core.c
> +++ b/sound/sound_core.c
> @@ -655,7 +655,7 @@ static void cleanup_oss_soundcore(void)
> static int __init init_oss_soundcore(void)
> {
> if (preclaim_oss &&
> - register_chrdev(SOUND_MAJOR, "sound", &soundcore_fops) == -1) {
> + register_chrdev(SOUND_MAJOR, "sound", &soundcore_fops) < 0) {
> printk(KERN_ERR "soundcore: sound device already in use.\n");
> return -EBUSY;
> }
> --
> 1.9.1
>
>
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