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-rw-r--r--drivers/serial/crisv10.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 7be52fe288e..31f172397af 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -18,6 +18,7 @@ static char *serial_version = "$Revision: 1.25 $";
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/major.h>
+#include <linux/smp_lock.h>
#include <linux/string.h>
#include <linux/fcntl.h>
#include <linux/mm.h>