V4L/DVB (9603): dvb-ttusb-budget: Add validation for ttusb_alloc_iso_urbs

Added validation for ttusb_alloc_iso_urbs

Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
index 5faeee3f70bf..4a3f2b8ea37d 100644
--- a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
+++ b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
@@ -1665,7 +1665,14 @@ static int ttusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 
         ttusb_setup_interfaces(ttusb);
 
-        ttusb_alloc_iso_urbs(ttusb);
+        result = ttusb_alloc_iso_urbs(ttusb);
+        if (result < 0) {
+                dprintk("%s: ttusb_alloc_iso_urbs - failed\n", __func__);
+                mutex_unlock(&ttusb->semi2c);
+                kfree(ttusb);
+                return result;
+        }
+
         if (ttusb_init_controller(ttusb))
                 printk("ttusb_init_controller: error\n");