From 3347c9f691bf23c65375c51f904c848b36b6f8fb Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Mon, 22 Oct 2018 11:54:18 -0300 Subject: [PATCH] powerpc/scom: Return NULL instead of 0 Function scom_map_device() returns data type 'scom_map_t', which is a typedef for 'void *'. This functions is currently returning NULL and zero, which causes the following warning by 'sparse': arch/powerpc/sysdev/scom.c:63:24: warning: Using plain integer as NULL pointer arch/powerpc/sysdev/scom.c:86:24: warning: Using plain integer as NULL pointer This patch simply replaces zero by NULL. Signed-off-by: Breno Leitao Signed-off-by: Michael Ellerman --- arch/powerpc/sysdev/scom.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c index 0f6fd5d04d33..a707b24a7ddb 100644 --- a/arch/powerpc/sysdev/scom.c +++ b/arch/powerpc/sysdev/scom.c @@ -60,7 +60,7 @@ scom_map_t scom_map_device(struct device_node *dev, int index) parent = scom_find_parent(dev); if (parent == NULL) - return 0; + return NULL; /* * We support "scom-reg" properties for adding scom registers @@ -83,7 +83,7 @@ scom_map_t scom_map_device(struct device_node *dev, int index) size >>= 2; if (index >= (size / (2*cells))) - return 0; + return NULL; reg = of_read_number(&prop[index * cells * 2], cells); cnt = of_read_number(&prop[index * cells * 2 + cells], cells);