5 files changed, 24 insertions, 3 deletions
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index ee5837522f5a..0cabe31f26df 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -787,8 +787,7 @@ capi_poll(struct file *file, poll_table * wait)
 }
 
 static int
-capi_ioctl(struct inode *inode, struct file *file,
-	   unsigned int cmd, unsigned long arg)
+capi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct capidev *cdev = file->private_data;
 	capi_ioctl_struct data;
@@ -981,6 +980,18 @@ register_out:
 	}
 }
 
+static long
+capi_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int ret;
+
+	lock_kernel();
+	ret = capi_ioctl(file, cmd, arg);
+	unlock_kernel();
+
+	return ret;
+}
+
 static int capi_open(struct inode *inode, struct file *file)
 {
 	struct capidev *cdev;
@@ -1026,7 +1037,7 @@ static const struct file_operations capi_fops =
 	.read		= capi_read,
 	.write		= capi_write,
 	.poll		= capi_poll,
-	.ioctl		= capi_ioctl,
+	.unlocked_ioctl	= capi_unlocked_ioctl,
 	.open		= capi_open,
 	.release	= capi_release,
 };
diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c
index 8596bd1a4d26..2b83850997c3 100644
--- a/drivers/isdn/capi/capifs.c
+++ b/drivers/isdn/capi/capifs.c
@@ -11,6 +11,7 @@
 
 #include <linux/fs.h>
 #include <linux/mount.h>
+#include <linux/slab.h>
 #include <linux/namei.h>
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/isdn/capi/capilib.c b/drivers/isdn/capi/capilib.c
index fcaa1241ee77..0b041df2108c 100644
--- a/drivers/isdn/capi/capilib.c
+++ b/drivers/isdn/capi/capilib.c
@@ -1,4 +1,5 @@
 
+#include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/isdn/capilli.h>
diff --git a/drivers/isdn/capi/capiutil.c b/drivers/isdn/capi/capiutil.c
index 26626eead828..03c469e4451f 100644
--- a/drivers/isdn/capi/capiutil.c
+++ b/drivers/isdn/capi/capiutil.c
@@ -18,6 +18,7 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/isdn/capiutil.h>
+#include <linux/slab.h>
 
 /* from CAPI2.0 DDK AVM Berlin GmbH */
 
diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index ce9b05b9e93a..bde3c88b8b27 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -27,6 +27,7 @@
 #include <linux/init.h>
 #include <linux/moduleparam.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <linux/isdn/capicmd.h>
 #include <linux/isdn/capiutil.h>
@@ -1146,6 +1147,12 @@ load_unlock_out:
 		if (ctr->state == CAPI_CTR_DETECTED)
 			goto reset_unlock_out;
 
+		if (ctr->reset_ctr == NULL) {
+			printk(KERN_DEBUG "kcapi: reset: no reset function\n");
+			retval = -ESRCH;
+			goto reset_unlock_out;
+		}
+
 		ctr->reset_ctr(ctr);
 
 		retval = wait_on_ctr_state(ctr, CAPI_CTR_DETECTED);