From: Kaixu Xia <kaixuxia@tencent.com>
Date: Tue, 10 Nov 2020 02:56:01 +0000 (+0800)
Subject: powerpc/mm: Fix comparing pointer to 0 warning
X-Git-Tag: v5.11-rc1~76^2~286
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b84bf098fcc49ed6bf4b0a8bed52e9df0e8f1de7;p=thirdparty%2Fkernel%2Flinux.git

powerpc/mm: Fix comparing pointer to 0 warning

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@tencent.com>
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1604976961-20441-1-git-send-email-kaixuxia@tencent.com
---

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 079159e97bca8..888b9713a3161 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