[media] as102: fix leaks at failure paths in as102_usb_probe()

Failure handling is incomplete in as102_usb_probe().
The patch implements proper resource deallocations.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/staging/media/as102/as102_usb_drv.c b/drivers/staging/media/as102/as102_usb_drv.c
index 8759553decac..e4a69454ebeb 100644
--- a/drivers/staging/media/as102/as102_usb_drv.c
+++ b/drivers/staging/media/as102/as102_usb_drv.c
@@ -401,14 +401,21 @@ static int as102_usb_probe(struct usb_interface *intf,
         /* request buffer allocation for streaming */
         ret = as102_alloc_usb_stream_buffer(as102_dev);
         if (ret != 0)
-                goto failed;
+                goto failed_stream;
 
         /* register dvb layer */
         ret = as102_dvb_register(as102_dev);
+        if (ret != 0)
+                goto failed_dvb;
 
         return ret;
 
+failed_dvb:
+        as102_free_usb_stream_buffer(as102_dev);
+failed_stream:
+        usb_deregister_dev(intf, &as102_usb_class_driver);
 failed:
+        usb_put_dev(as102_dev->bus_adap.usb_dev);
         usb_set_intfdata(intf, NULL);
         kfree(as102_dev);
         return ret;