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path: root/drivers/input/misc/hp_sdc_rtc.c
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Diffstat (limited to 'drivers/input/misc/hp_sdc_rtc.c')
-rw-r--r--drivers/input/misc/hp_sdc_rtc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
index 45e5d05b01de..49d8abfe38fe 100644
--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -35,6 +35,7 @@
#include <linux/hp_sdc.h>
#include <linux/errno.h>
+#include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -408,6 +409,7 @@ static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait)
static int hp_sdc_rtc_open(struct inode *inode, struct file *file)
{
+ cycle_kernel_lock();
return 0;
}