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V4L/DVB: nGene: use NULL when pointer is needed

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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>
This commit is contained in:
Márton Németh 2010-02-28 11:34:35 -03:00 committed by Mauro Carvalho Chehab
parent 6c9eaa82da
commit 7b1fc72c2f
1 changed files with 10 additions and 10 deletions
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20
drivers/media/dvb/ngene/ngene-core.c
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@ -819,7 +819,7 @@ static int ngene_i2c_master_xfer(struct i2c_adapter *adapter,
msg[0].buf, msg[0].len)) msg[0].buf, msg[0].len))
goto done; goto done;
if (num == 1 && (msg[0].flags & I2C_M_RD)) if (num == 1 && (msg[0].flags & I2C_M_RD))
if (!ngene_command_i2c_read(dev, msg[0].addr, 0, 0, if (!ngene_command_i2c_read(dev, msg[0].addr, NULL, 0,
msg[0].buf, msg[0].len, 0)) msg[0].buf, msg[0].len, 0))
goto done; goto done;
@ -882,7 +882,7 @@ static void *tsin_exchange(void *priv, void *buf, u32 len, u32 clock, u32 flags)
if (chan->users > 0) if (chan->users > 0)
#endif #endif
dvb_dmx_swfilter(&chan->demux, buf, len); dvb_dmx_swfilter(&chan->demux, buf, len);
return 0; return NULL;
} }
u8 fill_ts[188] = { 0x47, 0x1f, 0xff, 0x10 }; u8 fill_ts[188] = { 0x47, 0x1f, 0xff, 0x10 };
@ -970,7 +970,7 @@ static void set_transfer(struct ngene_channel *chan, int state)
state); state);
if (!state) { if (!state) {
spin_lock_irq(&chan->state_lock); spin_lock_irq(&chan->state_lock);
chan->pBufferExchange = 0; chan->pBufferExchange = NULL;
dvb_ringbuffer_flush(&dev->tsout_rbuf); dvb_ringbuffer_flush(&dev->tsout_rbuf);
spin_unlock_irq(&chan->state_lock); spin_unlock_irq(&chan->state_lock);
} }
@ -1020,7 +1020,7 @@ static int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
dvbdemux->feednum = 256; dvbdemux->feednum = 256;
dvbdemux->start_feed = start_feed; dvbdemux->start_feed = start_feed;
dvbdemux->stop_feed = stop_feed; dvbdemux->stop_feed = stop_feed;
dvbdemux->write_to_decoder = 0; dvbdemux->write_to_decoder = NULL;
dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
DMX_SECTION_FILTERING | DMX_SECTION_FILTERING |
DMX_MEMORY_BASED_FILTERING); DMX_MEMORY_BASED_FILTERING);
@ -1094,8 +1094,8 @@ static void free_idlebuffer(struct ngene *dev,
return; return;
free_ringbuffer(dev, rb); free_ringbuffer(dev, rb);
for (j = 0; j < tb->NumBuffers; j++, Cur = Cur->Next) { for (j = 0; j < tb->NumBuffers; j++, Cur = Cur->Next) {
Cur->Buffer2 = 0; Cur->Buffer2 = NULL;
Cur->scList2 = 0; Cur->scList2 = NULL;
Cur->ngeneBuffer.Address_of_first_entry_2 = 0; Cur->ngeneBuffer.Address_of_first_entry_2 = 0;
Cur->ngeneBuffer.Number_of_entries_2 = 0; Cur->ngeneBuffer.Number_of_entries_2 = 0;
} }
@ -1141,7 +1141,7 @@ static int create_ring_buffer(struct pci_dev *pci_dev,
u64 PARingBufferNext; u64 PARingBufferNext;
struct SBufferHeader *Cur, *Next; struct SBufferHeader *Cur, *Next;
descr->Head = 0; descr->Head = NULL;
descr->MemSize = 0; descr->MemSize = 0;
descr->PAHead = 0; descr->PAHead = 0;
descr->NumBuffers = 0; descr->NumBuffers = 0;
@ -1719,7 +1719,7 @@ static void release_channel(struct ngene_channel *chan)
if (chan->fe) { if (chan->fe) {
dvb_unregister_frontend(chan->fe); dvb_unregister_frontend(chan->fe);
dvb_frontend_detach(chan->fe); dvb_frontend_detach(chan->fe);
chan->fe = 0; chan->fe = NULL;
} }
dvbdemux->dmx.close(&dvbdemux->dmx); dvbdemux->dmx.close(&dvbdemux->dmx);
dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
@ -1820,7 +1820,7 @@ static void __devexit ngene_remove(struct pci_dev *pdev)
release_channel(&dev->channel[i]); release_channel(&dev->channel[i]);
ngene_stop(dev); ngene_stop(dev);
ngene_release_buffers(dev); ngene_release_buffers(dev);
pci_set_drvdata(pdev, 0); pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev); pci_disable_device(pdev);
} }
@ -1868,7 +1868,7 @@ fail1:
ngene_release_buffers(dev); ngene_release_buffers(dev);
fail0: fail0:
pci_disable_device(pci_dev); pci_disable_device(pci_dev);
pci_set_drvdata(pci_dev, 0); pci_set_drvdata(pci_dev, NULL);
return stat; return stat;
} }