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Diffstat (limited to 'drivers/char/n_r3964.c')
-rw-r--r--drivers/char/n_r3964.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c
index 2e99158..6934025 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/char/n_r3964.c
@@ -58,6 +58,7 @@
#include <linux/ioport.h>
#include <linux/in.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/tty.h>
#include <linux/errno.h>
#include <linux/string.h> /* used in new tty drivers */
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