ALSA: asihpi - Explicitly include mutex.h
Because mutex is used in adapter struct defined here.
Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/asihpi/hpios.h b/sound/pci/asihpi/hpios.h
index 03273e7..2f605e3 100644
--- a/sound/pci/asihpi/hpios.h
+++ b/sound/pci/asihpi/hpios.h
@@ -38,6 +38,7 @@
#include <linux/firmware.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
+#include <linux/mutex.h>
#define HPI_NO_OS_FILE_OPS