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path: root/drivers/char/pty.c
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-rw-r--r--drivers/char/pty.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 9d1b4f548f6..6e6942c45f5 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -22,6 +22,7 @@
#include <linux/major.h>
#include <linux/mm.h>
#include <linux/init.h>
+#include <linux/smp_lock.h>
#include <linux/sysctl.h>
#include <linux/device.h>
#include <linux/uaccess.h>