From d7c31a1e754b5140eefeeb10c3c3be17f3702452 Mon Sep 17 00:00:00 2001
From: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Date: Tue, 11 Nov 2008 23:27:59 -0300
Subject: [PATCH] V4L/DVB (9601): ttusb_dec: Add NULL pointer validation
Added validation for NULL pointer
Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
drivers/media/dvb/ttusb-dec/ttusb_dec.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/media/dvb/ttusb-dec/ttusb_dec.c b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
index ab33fec8a19fb..c1386e9b13d35 100644
--- a/drivers/media/dvb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
@@ -1157,6 +1157,12 @@ static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec)
ISO_BUF_COUNT),
&dec->iso_dma_handle);
+ if (!dec->iso_buffer) {
+ dprintk("%s: pci_alloc_consistent - not enough memory\n",
+ __func__);
+ return -ENOMEM;
+ }
+
memset(dec->iso_buffer, 0,
ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF * ISO_BUF_COUNT));
--
2.30.2