drivers/edac: remove null from statics

Patches to conform to coding style, namely static don't need to be initialized
to NULL nor '0', as that is the default

Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/edac/i82875p_edac.c b/drivers/edac/i82875p_edac.c
index ce5f005..73a173e 100644
--- a/drivers/edac/i82875p_edac.c
+++ b/drivers/edac/i82875p_edac.c
@@ -177,7 +177,7 @@
 		.ctl_name = "i82875p"},
 };
 
-static struct pci_dev *mci_pdev = NULL;	/* init dev: in case that AGP code has
+static struct pci_dev *mci_pdev;	/* init dev: in case that AGP code has
 					 * already registered driver
 					 */