linux-kernel - [PATCH] alpha: Fix warning comparing pointer to 0

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Date:   Thu, 24 Mar 2022 09:59:27 +0800
From:   Haowen Bai <baihaowen@...zu.com>
To:     <rth@...ddle.net>, <ink@...assic.park.msu.ru>,
        <mattst88@...il.com>, <ebiederm@...ssion.com>
CC:     <linux-alpha@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Haowen Bai <baihaowen@...zu.com>
Subject: [PATCH] alpha: Fix warning comparing pointer to 0

Avoid pointer type value compared with 0 to make code clear.

Signed-off-by: Haowen Bai <baihaowen@...zu.com>
---
 arch/alpha/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index ec20c10..47e5c68 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -190,7 +190,7 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 
  no_context:
 	/* Are we prepared to handle this fault as an exception?  */
-	if ((fixup = search_exception_tables(regs->pc)) != 0) {
+	if ((fixup = search_exception_tables(regs->pc)) != NULL) {
 		unsigned long newpc;
 		newpc = fixup_exception(dpf_reg, fixup, regs->pc);
 		regs->pc = newpc;
-- 
2.7.4