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V4L/DVB: nGene: use NULL when pointer is needed
Use NULL when calling a function with pointer parameter, initializing a pointer and returning a pointer. This will remove the following sparse warning at different locations (see "make C=1"): * warning: Using plain integer as NULL pointer Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -819,7 +819,7 @@ static int ngene_i2c_master_xfer(struct i2c_adapter *adapter,
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msg[0].buf, msg[0].len))
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goto done;
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if (num == 1 && (msg[0].flags & I2C_M_RD))
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if (!ngene_command_i2c_read(dev, msg[0].addr, 0, 0,
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if (!ngene_command_i2c_read(dev, msg[0].addr, NULL, 0,
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msg[0].buf, msg[0].len, 0))
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goto done;
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@ -882,7 +882,7 @@ static void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
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if (chan->users > 0)
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#endif
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dvb_dmx_swfilter(&chan->demux, buf, len);
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return 0;
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return NULL;
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}
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u8 fill_ts[188] = { 0x47, 0x1f, 0xff, 0x10 };
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@ -970,7 +970,7 @@ static void set_transfer(struct ngene_channel *chan, int state)
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state);
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if (!state) {
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spin_lock_irq(&chan->state_lock);
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chan->pBufferExchange = 0;
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chan->pBufferExchange = NULL;
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dvb_ringbuffer_flush(&dev->tsout_rbuf);
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spin_unlock_irq(&chan->state_lock);
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}
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@ -1020,7 +1020,7 @@ static int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
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dvbdemux->feednum = 256;
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dvbdemux->start_feed = start_feed;
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dvbdemux->stop_feed = stop_feed;
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dvbdemux->write_to_decoder = 0;
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dvbdemux->write_to_decoder = NULL;
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dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
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DMX_SECTION_FILTERING |
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DMX_MEMORY_BASED_FILTERING);
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@ -1094,8 +1094,8 @@ static void free_idlebuffer(struct ngene *dev,
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return;
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free_ringbuffer(dev, rb);
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for (j = 0; j < tb->NumBuffers; j++, Cur = Cur->Next) {
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Cur->Buffer2 = 0;
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Cur->scList2 = 0;
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Cur->Buffer2 = NULL;
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Cur->scList2 = NULL;
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Cur->ngeneBuffer.Address_of_first_entry_2 = 0;
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Cur->ngeneBuffer.Number_of_entries_2 = 0;
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}
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@ -1141,7 +1141,7 @@ static int create_ring_buffer(struct pci_dev *pci_dev,
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u64 PARingBufferNext;
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struct SBufferHeader *Cur, *Next;
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descr->Head = 0;
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descr->Head = NULL;
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descr->MemSize = 0;
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descr->PAHead = 0;
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descr->NumBuffers = 0;
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@ -1719,7 +1719,7 @@ static void release_channel(struct ngene_channel *chan)
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if (chan->fe) {
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dvb_unregister_frontend(chan->fe);
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dvb_frontend_detach(chan->fe);
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chan->fe = 0;
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chan->fe = NULL;
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}
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dvbdemux->dmx.close(&dvbdemux->dmx);
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dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
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@ -1820,7 +1820,7 @@ static void __devexit ngene_remove(struct pci_dev *pdev)
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release_channel(&dev->channel[i]);
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ngene_stop(dev);
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ngene_release_buffers(dev);
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pci_set_drvdata(pdev, 0);
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pci_set_drvdata(pdev, NULL);
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pci_disable_device(pdev);
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}
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@ -1868,7 +1868,7 @@ fail1:
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ngene_release_buffers(dev);
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fail0:
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pci_disable_device(pci_dev);
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pci_set_drvdata(pci_dev, 0);
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pci_set_drvdata(pci_dev, NULL);
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return stat;
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}
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