linux-kernel - [PATCH] hid-a4tech: Delete an error message for a failed memory allocation in a4

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Date:   Tue, 6 Feb 2018 20:52:52 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-input@...r.kernel.org,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Jiri Kosina <jikos@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] hid-a4tech: Delete an error message for a failed memory
 allocation in a4_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 6 Feb 2018 20:48:04 +0100

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/hid/hid-a4tech.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/hid/hid-a4tech.c b/drivers/hid/hid-a4tech.c
index 9428ea7cdf8a..7a364f17f39e 100644
--- a/drivers/hid/hid-a4tech.c
+++ b/drivers/hid/hid-a4tech.c
@@ -91,10 +91,8 @@ static int a4_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	int ret;
 
 	a4 = devm_kzalloc(&hdev->dev, sizeof(*a4), GFP_KERNEL);
-	if (a4 == NULL) {
-		hid_err(hdev, "can't alloc device descriptor\n");
+	if (!a4)
 		return -ENOMEM;
-	}
 
 	a4->quirks = id->driver_data;
 
-- 
2.16.1