Re: [PATCH] powerpc/mm: Fix comparing pointer to 0 warning
From: Christophe Leroy
Date: Tue Nov 10 2020 - 01:07:28 EST
Le 10/11/2020 à 03:56, xiakaixu1987@xxxxxxxxx a écrit :
From: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
Fixes coccicheck warning:
./arch/powerpc/mm/pgtable_32.c:87:11-12: WARNING comparing pointer to 0
Avoid pointer type value compared to 0.
Reported-by: Tosk Robot <tencent_os_robot@xxxxxxxxxxx>
Signed-off-by: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
arch/powerpc/mm/pgtable_32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 079159e97bca..888b9713a316 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -84,7 +84,7 @@ int __ref map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot)
pg = pte_alloc_kernel(pd, va);
else
pg = early_pte_alloc_kernel(pd, va);
- if (pg != 0) {
+ if (pg) {
err = 0;
/* The PTE should never be already set nor present in the
* hash table