linux-kernel - [PATCH 1/2] Input: matrix_keypad: Delete two error messages for a failed memory allocation in matrix_keypad_parse

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Date:   Sat, 27 Jan 2018 13:53:20 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-input@...r.kernel.org, David Rivshin <DRivshin@...worx.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 1/2] Input: matrix_keypad: Delete two error messages for a
 failed memory allocation in matrix_keypad_parse_dt()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 27 Jan 2018 13:35:02 +0100

Omit extra messages 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/input/keyboard/matrix_keypad.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 1f316d66e6f7..90238201a9cc 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -413,10 +413,8 @@ matrix_keypad_parse_dt(struct device *dev)
 	}
 
 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata) {
-		dev_err(dev, "could not allocate memory for platform data\n");
+	if (!pdata)
 		return ERR_PTR(-ENOMEM);
-	}
 
 	pdata->num_row_gpios = nrow = of_gpio_named_count(np, "row-gpios");
 	pdata->num_col_gpios = ncol = of_gpio_named_count(np, "col-gpios");
@@ -445,10 +443,8 @@ matrix_keypad_parse_dt(struct device *dev)
 			     sizeof(unsigned int) *
 				(pdata->num_row_gpios + pdata->num_col_gpios),
 			     GFP_KERNEL);
-	if (!gpios) {
-		dev_err(dev, "could not allocate memory for gpios\n");
+	if (!gpios)
 		return ERR_PTR(-ENOMEM);
-	}
 
 	for (i = 0; i < pdata->num_row_gpios; i++)
 		gpios[i] = of_get_named_gpio(np, "row-gpios", i);
-- 
2.16.1