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V4L/DVB (9601): ttusb_dec: Add NULL pointer validation

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Added validation for NULL pointer

Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Douglas Schilling Landgraf 2008-11-11 23:27:59 -03:00 committed by Mauro Carvalho Chehab
parent e14c8bf863
commit d7c31a1e75
1 changed files with 6 additions and 0 deletions
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6
drivers/media/dvb/ttusb-dec/ttusb_dec.c
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@ -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));