From 11eb260a70b992b83fa2d15bb777cda3ee326c05 Mon Sep 17 00:00:00 2001 From: Douglas Schilling Landgraf Date: Tue, 11 Nov 2008 23:30:49 -0300 Subject: V4L/DVB (9602): dvb-ttusb-budget: Add NULL pointer validation Added validation for NULL pointer Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab --- 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 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); -- cgit v1.2.3