[PATCH] staging: comedi: amplc_pci224: Replace NULLFUNC
Ian Abbott
abbotti at mev.co.uk
Fri Jun 8 09:39:42 UTC 2012
The source code defines a macro NULLFUNC
#define NULLFUNC 0
and uses it as a generic null function pointer constant. This is
superfluous. Just use NULL instead.
Signed-off-by: Ian Abbott <abbotti at mev.co.uk>
---
drivers/staging/comedi/drivers/amplc_pci224.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 43f07f8..a1e23ba 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -265,9 +265,6 @@ Caveats:
/* Combine old and new bits. */
#define COMBINE(old, new, mask) (((old) & ~(mask)) | ((new) & (mask)))
-/* A generic null function pointer value. */
-#define NULLFUNC 0
-
/* Current CPU. XXX should this be hard_smp_processor_id()? */
#define THISCPU smp_processor_id()
@@ -703,7 +700,7 @@ pci224_ao_inttrig_start(struct comedi_device *dev, struct comedi_subdevice *s,
if (trignum != 0)
return -EINVAL;
- s->async->inttrig = NULLFUNC;
+ s->async->inttrig = NULL;
pci224_ao_start(dev, s);
return 1;
--
1.7.8.6
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