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Commit 01ebd764 authored by Vasiliy Kulikov's avatar Vasiliy Kulikov Committed by Greg Kroah-Hartman
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staging: cs5535_gpio: check put_user() return code 



put_user() may fail, if so return -EFAULT.

Signed-off-by: default avatarVasiliy Kulikov <segoon@openwall.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 2f644ccf

drivers/staging/cs5535_gpio/cs5535_gpio.c

+2 −1
Original line number Diff line number Diff line
@@ -146,7 +146,8 @@ static ssize_t cs5535_gpio_read(struct file *file, char __user *buf, 


	/* add a line-feed if there is room */

	if ((i == ARRAY_SIZE(rm)) && (count < len)) {

		put_user('\n', buf + count);

		if (put_user('\n', buf + count))

			return -EFAULT;

		count++;

	}