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Diffstat (limited to 'sound/ppc/beep.c')
-rw-r--r--sound/ppc/beep.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/sound/ppc/beep.c b/sound/ppc/beep.c
index 566b5ab..baa2a72 100644
--- a/sound/ppc/beep.c
+++ b/sound/ppc/beep.c
@@ -18,7 +18,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <sound/driver.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <linux/init.h>
@@ -195,10 +194,13 @@ static int snd_pmac_put_beep(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
- int oval;
+ unsigned int oval, nval;
snd_assert(chip->beep, return -ENXIO);
oval = chip->beep->volume;
- chip->beep->volume = ucontrol->value.integer.value[0];
+ nval = ucontrol->value.integer.value[0];
+ if (nval > 100)
+ return -EINVAL;
+ chip->beep->volume = nval;
return oval != chip->beep->volume;
}