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-rw-r--r--drivers/char/isicom.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 621d1184673c..4f1f4cd670da 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -122,6 +122,7 @@
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/serial.h>
+#include <linux/smp_lock.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/timer.h>