X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fchar%2Fhw_random%2Fcore.c;h=e5d583c84e4f864ae31cb95534bd5befe6291ed6;hb=572c48921574dbe6dceb958cf965aa962baefde4;hp=662d60e44e9a02924888d74499fbe91b268423f5;hpb=e43fe686e48835ca027559a068bbe0b6d264a254;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 662d60e44e9..e5d583c84e4 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -37,6 +37,7 @@
 #include <linux/kernel.h>
 #include <linux/fs.h>
 #include <linux/sched.h>
+#include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/miscdevice.h>
 #include <linux/delay.h>
@@ -86,6 +87,7 @@ static int rng_dev_open(struct inode *inode, struct file *filp)
 		return -EINVAL;
 	if (filp->f_mode & FMODE_WRITE)
 		return -EINVAL;
+	cycle_kernel_lock();
 	return 0;
 }