linux-kernel - [PATCH 06/13] MIPS: Lantiq: Fix another request_mem

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Message-Id: <20170117151911.4109452-6-arnd@arndb.de>
Date:   Tue, 17 Jan 2017 16:18:40 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Ralf Baechle <ralf@...ux-mips.org>
Cc:     linux-mips@...ux-mips.org, Arnd Bergmann <arnd@...db.de>,
        John Crispin <john@...ozen.org>, linux-kernel@...r.kernel.org
Subject: [PATCH 06/13] MIPS: Lantiq: Fix another request_mem_region() return code check

Hauke already fixed a couple of them, but one instance remains
that checks for a negative integer when it should check
for a NULL pointer:

arch/mips/lantiq/xway/sysctrl.c: In function 'ltq_soc_init':
arch/mips/lantiq/xway/sysctrl.c:473:19: error: ordered comparison of pointer with integer zero [-Werror=extra]

Fixes: 6e807852676a ("MIPS: Lantiq: Fix check for return value of request_mem_region()")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/mips/lantiq/xway/sysctrl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 236193b5210b..ba9f358fa21b 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -469,8 +469,8 @@ void __init ltq_soc_init(void)
 			panic("Failed to load xbar nodes from devicetree");
 		if (of_address_to_resource(np_pmu, 0, &res_xbar))
 			panic("Failed to get xbar resources");
-		if (request_mem_region(res_xbar.start, resource_size(&res_xbar),
-			res_xbar.name) < 0)
+		if (!request_mem_region(res_xbar.start, resource_size(&res_xbar),
+			res_xbar.name))
 			panic("Failed to get xbar resources");
 
 		ltq_xbar_membase = ioremap_nocache(res_xbar.start,
-- 
2.9.0