X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Fs390%2Fcrypto%2Fprng.c;h=eca724d229ecd26d7102dfd7c7d4be37af98d19f;hb=e3c6d4ee545e427b55882d97d3b663c6411645fe;hp=0cfefddd83755366fee0dae7634ccca6342b21dd;hpb=bd45ac0c5daae35e7c71138172e63df5cf644cf6;p=mv-sheeva.git

diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index 0cfefddd837..eca724d229e 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -6,6 +6,7 @@
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/smp_lock.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -48,6 +49,7 @@ static unsigned char parm_block[32] = {
 
 static int prng_open(struct inode *inode, struct file *file)
 {
+	cycle_kernel_lock();
 	return nonseekable_open(inode, file);
 }
 
@@ -185,11 +187,8 @@ static int __init prng_init(void)
 	prng_seed(16);
 
 	ret = misc_register(&prng_dev);
-	if (ret) {
-		printk(KERN_WARNING
-		       "Could not register misc device for PRNG.\n");
+	if (ret)
 		goto out_buf;
-	}
 	return 0;
 
 out_buf: