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Diffstat (limited to 'drivers/char/rio/rio_linux.c')
-rw-r--r--drivers/char/rio/rio_linux.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index ce81da5b2da9..d58c2eb07f07 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -44,6 +44,7 @@
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/miscdevice.h>
#include <linux/init.h>