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-rw-r--r--drivers/char/sx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index 518f2a25d91..a81ec4fcf6f 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -216,6 +216,7 @@
#include <linux/eisa.h>
#include <linux/pci.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/miscdevice.h>
#include <linux/bitops.h>