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-rw-r--r--sound/oss/trident.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/oss/trident.c b/sound/oss/trident.c
index 7a363a178af..6b1f8c9cdcf 100644
--- a/sound/oss/trident.c
+++ b/sound/oss/trident.c
@@ -216,6 +216,7 @@
#include <linux/gameport.h>
#include <linux/kernel.h>
#include <linux/mutex.h>
+#include <linux/mm.h>
#include <asm/uaccess.h>
#include <asm/io.h>