From 11eb260a70b992b83fa2d15bb777cda3ee326c05 Mon Sep 17 00:00:00 2001
From: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Date: Tue, 11 Nov 2008 23:30:49 -0300
Subject: [PATCH] V4L/DVB (9602): dvb-ttusb-budget: 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-budget/dvb-ttusb-budget.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
index 66ab0c6e9783d..5faeee3f70bf9 100644
--- a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
+++ b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
@@ -808,6 +808,12 @@ static int ttusb_alloc_iso_urbs(struct ttusb *ttusb)
ISO_BUF_COUNT,
&ttusb->iso_dma_handle);
+ if (!ttusb->iso_buffer) {
+ dprintk("%s: pci_alloc_consistent - not enough memory\n",
+ __func__);
+ return -ENOMEM;
+ }
+
memset(ttusb->iso_buffer, 0,
ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF * ISO_BUF_COUNT);
--
2.30.2