summaryrefslogtreecommitdiff
path: root/sound/usb/usbaudio.h
diff options
context:
space:
mode:
Diffstat (limited to 'sound/usb/usbaudio.h')
-rw-r--r--sound/usb/usbaudio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 167834133b9b..b8359a0aa008 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -8,7 +8,7 @@
*/
/* handling of USB vendor/product ID pairs as 32-bit numbers */
-#define USB_ID(vendor, product) (((vendor) << 16) | (product))
+#define USB_ID(vendor, product) (((unsigned int)(vendor) << 16) | (product))
#define USB_ID_VENDOR(id) ((id) >> 16)
#define USB_ID_PRODUCT(id) ((u16)(id))