linux-kernel - [PATCH] platform/x86: intel_ips: Remove unnecessary NULL check before debugfs_remove

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Message-Id: <20181206010914.21964-1-wen.yang99@zte.com.cn>
Date:   Thu, 6 Dec 2018 09:09:14 +0800
From:   Wen Yang <wen.yang99@....com.cn>
To:     Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        zhong.weidong@....com.cn, Wen Yang <wen.yang99@....com.cn>
Subject: [PATCH] platform/x86: intel_ips: Remove unnecessary NULL check before debugfs_remove_recursive

debugfs_remove_recursive() accepts a NULL parameter and returns
immediately, there's no need for a NULL check in the caller.

This issue was detected with the help of Coccinelle.

Signed-off-by: Wen Yang <wen.yang99@....com.cn>
CC: Darren Hart <dvhart@...radead.org>
CC: Andy Shevchenko <andy@...radead.org>
CC: platform-driver-x86@...r.kernel.org
CC: linux-kernel@...r.kernel.org
---
 drivers/platform/x86/intel_ips.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index 225638a1b09e..f8175b972537 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -1300,9 +1300,7 @@ static const struct file_operations ips_debugfs_ops = {
 
 static void ips_debugfs_cleanup(struct ips_driver *ips)
 {
-	if (ips->debug_root)
-		debugfs_remove_recursive(ips->debug_root);
-	return;
+	debugfs_remove_recursive(ips->debug_root);
 }
 
 static void ips_debugfs_init(struct ips_driver *ips)
-- 
2.19.1