linux-kernel - [PATCH] gpio-74x164: Fix buffer allocation size

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Date:	Tue, 16 Oct 2012 15:24:01 +0200
From:	Roland Stigge <stigge@...com.de>
To:	maxime.ripard@...e-electrons.com, grant.likely@...retlab.ca,
	linus.walleij@...aro.org, linux-kernel@...r.kernel.org
Cc:	Roland Stigge <stigge@...com.de>
Subject: [PATCH] gpio-74x164: Fix buffer allocation size

The new registers handling in the gpio-74x164 driver allocates chip->registers
* 8 bytes where only one byte per register is necessary. This patch fixes this.

Signed-off-by: Roland Stigge <stigge@...com.de>
---
 drivers/gpio/gpio-74x164.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.orig/drivers/gpio/gpio-74x164.c
+++ linux-2.6/drivers/gpio/gpio-74x164.c
@@ -153,7 +153,7 @@ static int __devinit gen_74x164_probe(st
 	}
 
 	chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers;
-	chip->buffer = devm_kzalloc(&spi->dev, chip->gpio_chip.ngpio, GFP_KERNEL);
+	chip->buffer = devm_kzalloc(&spi->dev, chip->registers, GFP_KERNEL);
 	if (!chip->buffer) {
 		ret = -ENOMEM;
 		goto exit_destroy;
--
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