1 files changed, 9 insertions, 2 deletions

diff --git a/sound/isa/opti9xx/miro.c b/sound/isa/opti9xx/miro.c
index d295936611f..2a1e2f5d12c 100644
--- a/sound/isa/opti9xx/miro.c
+++ b/sound/isa/opti9xx/miro.c
@@ -22,7 +22,6 @@
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
-#include <sound/driver.h>
 #include <linux/init.h>
 #include <linux/err.h>
 #include <linux/isa.h>
@@ -483,6 +482,10 @@ static int snd_miro_put_double(struct snd_kcontrol *kcontrol,
 
                 /* equalizer elements */
 
+                if (left < -0x7f || left > 0x7f ||
+                    right < -0x7f || right > 0x7f)
+                        return -EINVAL;
+
                 if (left_old > 0x80) 
                         left_old = 0x80 - left_old;
                 if (right_old > 0x80) 
@@ -520,6 +523,10 @@ static int snd_miro_put_double(struct snd_kcontrol *kcontrol,
 
                 /* non-equalizer elements */
 
+                if (left < 0 || left > 0x20 ||
+                    right < 0 || right > 0x20)
+                        return -EINVAL;
+
                 left_old = 0x20 - left_old;
                 right_old = 0x20 - right_old;
 
@@ -662,7 +669,7 @@ static int __devinit snd_set_aci_init_values(struct snd_miro *miro)
         return 0;
 }
 
-static int snd_miro_mixer(struct snd_miro *miro)
+static int __devinit snd_miro_mixer(struct snd_miro *miro)
 {
         struct snd_card *card;
         unsigned int idx;