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-rw-r--r--drivers/telephony/ixj.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c
index a913efc6966..40de151f278 100644
--- a/drivers/telephony/ixj.c
+++ b/drivers/telephony/ixj.c
@@ -257,6 +257,7 @@
#include <linux/fs.h> /* everything... */
#include <linux/errno.h> /* error codes */
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>