mISDN: use NULL pointer instead of plain integer
Fix more than 100 (all remaining in mISDN) sparse warnings:
drivers/isdn/hardware/mISDN/hfcmulti.c:***:**: warning: Using plain integer as NULL pointer
drivers/isdn/mISDN/dsp_tones.c:***:**: warning: Using plain integer as NULL pointer
drivers/isdn/mISDN/dsp_pipeline.c:***:**: warning: Using plain integer as NULL pointer
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c
index 850260a..5ee6651 100644
--- a/drivers/isdn/mISDN/dsp_pipeline.c
+++ b/drivers/isdn/mISDN/dsp_pipeline.c
@@ -249,7 +249,7 @@
name = strsep(&tok, "(");
args = strsep(&tok, ")");
if (args && !*args)
- args = 0;
+ args = NULL;
list_for_each_entry_safe(entry, n, &dsp_elements, list)
if (!strcmp(entry->elem->name, name)) {