1 files changed, 1 insertions, 1 deletions

diff --git a/sound/oss/mpu401.c b/sound/oss/mpu401.c
index 58d4a5d05a27..e96220541971 100644
--- a/sound/oss/mpu401.c
+++ b/sound/oss/mpu401.c
@@ -435,7 +435,7 @@ static void mpu401_input_loop(struct mpu_config *devc)
 static irqreturn_t mpuintr(int irq, void *dev_id)
 {
         struct mpu_config *devc;
-        int dev = (int) dev_id;
+        int dev = (int)(unsigned long) dev_id;
         int handled = 0;
 
         devc = &dev_conf[dev];