linux-kernel - [PATCH] firmware: Use PTR_ERR_OR

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Date:   Tue, 28 Nov 2017 22:40:27 +0100
From:   Vasyl Gomonovych <gomonovych@...il.com>
To:     somlo@....edu, mst@...hat.com, qemu-devel@...gnu.org
Cc:     linux-kernel@...r.kernel.org, gomonovych@...il.com
Subject: [PATCH] firmware: Use PTR_ERR_OR_ZERO()

Fix ptr_ret.cocci warnings:
drivers/firmware/efi/efi.c:610:8-14: WARNING: PTR_ERR_OR_ZERO can be used

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Vasyl Gomonovych <gomonovych@...il.com>
---
 drivers/firmware/qemu_fw_cfg.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 5cfe39f7a45f..18489b6a696d 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -693,10 +693,8 @@ static int fw_cfg_cmdline_set(const char *arg, const struct kernel_param *kp)
 	 */
 	fw_cfg_cmdline_dev = platform_device_register_simple("fw_cfg",
 					PLATFORM_DEVID_NONE, res, processed);
-	if (IS_ERR(fw_cfg_cmdline_dev))
-		return PTR_ERR(fw_cfg_cmdline_dev);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(fw_cfg_cmdline_dev);
 }
 
 static int fw_cfg_cmdline_get(char *buf, const struct kernel_param *kp)
-- 
1.9.1