diff options
Diffstat (limited to 'sound/core/hwdep.c')
| -rw-r--r-- | sound/core/hwdep.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c index a70ee7f1ed98..75ea16f35b1a 100644 --- a/sound/core/hwdep.c +++ b/sound/core/hwdep.c @@ -24,6 +24,7 @@ #include <linux/slab.h> #include <linux/time.h> #include <linux/mutex.h> +#include <linux/module.h> #include <sound/core.h> #include <sound/control.h> #include <sound/minors.h> @@ -272,7 +273,14 @@ static int snd_hwdep_control_ioctl(struct snd_card *card, if (get_user(device, (int __user *)arg)) return -EFAULT; mutex_lock(®ister_mutex); - device = device < 0 ? 0 : device + 1; + + if (device < 0) + device = 0; + else if (device < SNDRV_MINOR_HWDEPS) + device++; + else + device = SNDRV_MINOR_HWDEPS; + while (device < SNDRV_MINOR_HWDEPS) { if (snd_hwdep_search(card, device)) break; |