From: Márton Németh <nm...@freemail.hu>

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 <nm...@freemail.hu>
---
diff -r 37581bb7e6f1 linux/drivers/media/dvb/ngene/ngene-core.c
--- a/linux/drivers/media/dvb/ngene/ngene-core.c        Wed Feb 24 22:48:50 
2010 -0300
+++ b/linux/drivers/media/dvb/ngene/ngene-core.c        Sun Feb 28 15:28:56 
2010 +0100
@@ -994,7 +994,7 @@
                                             msg[0].buf, msg[0].len))
                        goto done;
        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))
                        goto done;

@@ -1793,7 +1793,7 @@
        if (chan->users > 0)
 #endif
                dvb_dmx_swfilter(&chan->demux, buf, len);
-       return 0;
+       return NULL;
 }

 u8 fill_ts[188] = { 0x47, 0x1f, 0xff, 0x10 };
@@ -1900,7 +1900,7 @@
                       state);
        if (!state) {
                spin_lock_irq(&chan->state_lock);
-               chan->pBufferExchange = 0;
+               chan->pBufferExchange = NULL;
                dvb_ringbuffer_flush(&dev->tsout_rbuf);
                spin_unlock_irq(&chan->state_lock);
        }
@@ -2226,7 +2226,7 @@
        dvbdemux->feednum = 256;
        dvbdemux->start_feed = start_feed;
        dvbdemux->stop_feed = stop_feed;
-       dvbdemux->write_to_decoder = 0;
+       dvbdemux->write_to_decoder = NULL;
        dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
                                      DMX_SECTION_FILTERING |
                                      DMX_MEMORY_BASED_FILTERING);
@@ -2383,8 +2383,8 @@
                return;
        free_ringbuffer(dev, rb);
        for (j = 0; j < tb->NumBuffers; j++, Cur = Cur->Next) {
-               Cur->Buffer2 = 0;
-               Cur->scList2 = 0;
+               Cur->Buffer2 = NULL;
+               Cur->scList2 = NULL;
                Cur->ngeneBuffer.Address_of_first_entry_2 = 0;
                Cur->ngeneBuffer.Number_of_entries_2 = 0;
        }
@@ -2430,7 +2430,7 @@
        u64 PARingBufferNext;
        struct SBufferHeader *Cur, *Next;

-       descr->Head = 0;
+       descr->Head = NULL;
        descr->MemSize = 0;
        descr->PAHead = 0;
        descr->NumBuffers = 0;
@@ -3619,7 +3619,7 @@
                if (chan->fe) {
                        dvb_unregister_frontend(chan->fe);
                        dvb_frontend_detach(chan->fe);
-                       chan->fe = 0;
+                       chan->fe = NULL;
                }
                dvbdemux->dmx.close(&dvbdemux->dmx);
                dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
@@ -3765,7 +3765,7 @@
                release_channel(&dev->channel[i]);
        ngene_stop(dev);
        ngene_release_buffers(dev);
-       pci_set_drvdata(pdev, 0);
+       pci_set_drvdata(pdev, NULL);
        pci_disable_device(pdev);
 }

@@ -3840,7 +3840,7 @@
        ngene_release_buffers(dev);
 fail0:
        pci_disable_device(pci_dev);
-       pci_set_drvdata(pci_dev, 0);
+       pci_set_drvdata(pci_dev, NULL);
        return stat;
 }

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