X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Fum%2Fdrivers%2Fharddog_kern.c;h=d332503fa1beae1f54a53fbbb62356ea2113cfb1;hb=2aedd192f799c362ccefc3c316f0c4bd5154126b;hp=a9ad4bd6d953d2255d82e3776b816165e50a94aa;hpb=821f3eff7cdb9d6c7076effabd46c96c322daed1;p=karo-tx-linux.git

diff --git a/arch/um/drivers/harddog_kern.c b/arch/um/drivers/harddog_kern.c
index a9ad4bd6d953..d332503fa1be 100644
--- a/arch/um/drivers/harddog_kern.c
+++ b/arch/um/drivers/harddog_kern.c
@@ -66,6 +66,7 @@ static int harddog_open(struct inode *inode, struct file *file)
 	int err = -EBUSY;
 	char *sock = NULL;
 
+	lock_kernel();
 	spin_lock(&lock);
 	if(timer_alive)
 		goto err;
@@ -82,9 +83,11 @@ static int harddog_open(struct inode *inode, struct file *file)
 
 	timer_alive = 1;
 	spin_unlock(&lock);
+	unlock_kernel();
 	return nonseekable_open(inode, file);
 err:
 	spin_unlock(&lock);
+	unlock_kernel();
 	return err;
 }