X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=drivers%2Fisdn%2Fdivert%2Fdivert_procfs.c;h=c53e2417e7d4aca7130160d27dbf4b32815c1e1d;hb=98c89cdd3a292af3451e47a2a33132f5183861b0;hp=3697c409bec66d5b9c2dbe0b31577f22fef2ef1c;hpb=3560adf62075829393743667ff338dd8fd26a5c2;p=linux-2.6-block.git

diff --git a/drivers/isdn/divert/divert_procfs.c b/drivers/isdn/divert/divert_procfs.c
index 3697c409bec6..c53e2417e7d4 100644
--- a/drivers/isdn/divert/divert_procfs.c
+++ b/drivers/isdn/divert/divert_procfs.c
@@ -11,6 +11,7 @@
 
 #include <linux/module.h>
 #include <linux/poll.h>
+#include <linux/slab.h>
 #ifdef CONFIG_PROC_FS
 #include <linux/proc_fs.h>
 #else
@@ -19,6 +20,7 @@
 #include <linux/sched.h>
 #include <linux/isdnif.h>
 #include <net/net_namespace.h>
+#include <linux/smp_lock.h>
 #include "isdn_divert.h"
 
 
@@ -176,9 +178,7 @@ isdn_divert_close(struct inode *ino, struct file *filep)
 /*********/
 /* IOCTL */
 /*********/
-static int
-isdn_divert_ioctl(struct inode *inode, struct file *file,
-		  uint cmd, ulong arg)
+static int isdn_divert_ioctl_unlocked(struct file *file, uint cmd, ulong arg)
 {
 	divert_ioctl dioctl;
 	int i;
@@ -257,6 +257,17 @@ isdn_divert_ioctl(struct inode *inode, struct file *file,
 	return copy_to_user((void __user *)arg, &dioctl, sizeof(dioctl)) ? -EFAULT : 0;
 }				/* isdn_divert_ioctl */
 
+static long isdn_divert_ioctl(struct file *file, uint cmd, ulong arg)
+{
+	long ret;
+
+	lock_kernel();
+	ret = isdn_divert_ioctl_unlocked(file, cmd, arg);
+	unlock_kernel();
+
+	return ret;
+}
+
 static const struct file_operations isdn_fops =
 {
 	.owner          = THIS_MODULE,
@@ -264,7 +275,7 @@ static const struct file_operations isdn_fops =
 	.read           = isdn_divert_read,
 	.write          = isdn_divert_write,
 	.poll           = isdn_divert_poll,
-	.ioctl          = isdn_divert_ioctl,
+	.unlocked_ioctl = isdn_divert_ioctl,
 	.open           = isdn_divert_open,
 	.release        = isdn_divert_close,                                      
 };