Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753296AbcJKKQv (ORCPT ); Tue, 11 Oct 2016 06:16:51 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:56812 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752844AbcJKKLj (ORCPT ); Tue, 11 Oct 2016 06:11:39 -0400 From: Mauro Carvalho Chehab To: Linux Media Mailing List Cc: Mauro Carvalho Chehab , Mauro Carvalho Chehab , Andy Lutomirski , Johannes Stezenbach , Jiri Kosina , Patrick Boettcher , Linux Kernel Mailing List , Andy Lutomirski , Michael Krufky , Mauro Carvalho Chehab , =?UTF-8?q?J=C3=B6rg=20Otte?= Subject: [PATCH v2 25/31] nova-t-usb2: handle error code on RC query Date: Tue, 11 Oct 2016 07:09:40 -0300 Message-Id: <94b9c99b381cf64468868aef2f64e80639b3238a.1476179975.git.mchehab@s-opensource.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1329 Lines: 46 There's no sense on decoding and generating a RC key code if there was an error on the URB control message. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/dvb-usb/nova-t-usb2.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/media/usb/dvb-usb/nova-t-usb2.c b/drivers/media/usb/dvb-usb/nova-t-usb2.c index 26d7188a1163..1babd3341910 100644 --- a/drivers/media/usb/dvb-usb/nova-t-usb2.c +++ b/drivers/media/usb/dvb-usb/nova-t-usb2.c @@ -76,7 +76,7 @@ static int nova_t_rc_query(struct dvb_usb_device *d, u32 *event, int *state) { u8 *buf, data, toggle, custom; u16 raw; - int i; + int i, ret; struct dibusb_device_state *st = d->priv; buf = kmalloc(5, GFP_KERNEL); @@ -85,7 +85,9 @@ static int nova_t_rc_query(struct dvb_usb_device *d, u32 *event, int *state) buf[0] = DIBUSB_REQ_POLL_REMOTE; buf[1] = 0x35; - dvb_usb_generic_rw(d, buf, 2, buf, 5, 0); + ret = dvb_usb_generic_rw(d, buf, 2, buf, 5, 0); + if (ret < 0) + goto ret; *state = REMOTE_NO_KEY_PRESSED; switch (buf[0]) { @@ -124,8 +126,9 @@ static int nova_t_rc_query(struct dvb_usb_device *d, u32 *event, int *state) break; } +ret: kfree(buf); - return 0; + return ret; } static int nova_t_read_mac_address (struct dvb_usb_device *d, u8 mac[6]) -- 2.7.4