From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 20 Jan 2012 07:57:14 +0000 (+0300)
Subject: ACPI, APEI, EINJ, cleanup 0 vs NULL confusion
X-Git-Tag: upstream/snapshot3+hdmi~8254^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=29924b9f8f39e37275cff93740835d28b9e6fb36;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

ACPI, APEI, EINJ, cleanup 0 vs NULL confusion

This function is returning pointers.  Sparse complains here:
drivers/acpi/apei/einj.c:262:32: warning:
	Using plain integer as NULL pointer

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index bb20b03..c89b0e5 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -259,15 +259,15 @@ static void *einj_get_parameter_address(void)
 
 		v4param = ioremap(paddrv4, sizeof(*v4param));
 		if (!v4param)
-			return 0;
+			return NULL;
 		if (readq(&v4param->reserved1) || readq(&v4param->reserved2)) {
 			iounmap(v4param);
-			return 0;
+			return NULL;
 		}
 		return v4param;
 	}
 
-	return 0;
+	return NULL;
 }
 
 /* do sanity check to trigger table */