[PATCH] powerpc/mm: Fix comparing pointer to 0 warning

[xiakaixu1987]

From: Kaixu Xia <kaixu...@tencent.com>

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_ro...@tencent.com>
Signed-off-by: Kaixu Xia <kaixu...@tencent.com>
---
 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
-- 
2.20.0