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authorDouglas Schilling Landgraf <dougsland@linuxtv.org>2008-11-11 23:27:59 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-11-16 23:54:29 -0200
commitd7c31a1e754b5140eefeeb10c3c3be17f3702452 (patch)
tree4fc645d6c8243222babf8a8ba15178e865005ef9 /drivers/media/dvb/ttusb-dec
parente14c8bf86350f6c39186a139c5c584a6111b2f01 (diff)
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>
Diffstat (limited to 'drivers/media/dvb/ttusb-dec')
-rw-r--r--drivers/media/dvb/ttusb-dec/ttusb_dec.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/dvb/ttusb-dec/ttusb_dec.c b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
index ab33fec8a19..c1386e9b13d 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));