From: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Date: Wed, 12 Nov 2008 02:30:49 +0000 (-0300)
Subject: V4L/DVB (9602): dvb-ttusb-budget: Add NULL pointer validation
X-Git-Tag: v2.6.28-rc7~1^2~23
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=11eb260a70b992b83fa2d15bb777cda3ee326c05;p=linux-2.6-omap-h63xx.git

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>
---

diff --git a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
index 66ab0c6e978..5faeee3f70b 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);