From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH] i2c: slave-eeprom: fix boundary check when using sysfs Date: Mon, 19 Jan 2015 17:22:55 +0100 Message-ID: <1421684575-6679-1-git-send-email-wsa@the-dreams.de> Return-path: Sender: linux-sh-owner@vger.kernel.org To: linux-i2c@vger.kernel.org Cc: linux-sh@vger.kernel.org, Wolfram Sang , Magnus Damm , Simon Horman , Laurent Pinchart , Geert Uytterhoeven , Debora Grosse List-Id: linux-i2c@vger.kernel.org From: Wolfram Sang Due to a copy&paste error, the last byte of the shared memory was not accessible via sysfs. Reported-by: Debora Grosse Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-slave-eeprom.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/i2c-slave-eeprom.c b/drivers/i2c/i2c-slave-eeprom.c index f432f81b0414..8f417e9054ac 100644 --- a/drivers/i2c/i2c-slave-eeprom.c +++ b/drivers/i2c/i2c-slave-eeprom.c @@ -74,7 +74,7 @@ static ssize_t i2c_slave_eeprom_bin_read(struct file *filp, struct kobject *kobj struct eeprom_data *eeprom; unsigned long flags; - if (off + count >= attr->size) + if (off + count > attr->size) return -EFBIG; eeprom = dev_get_drvdata(container_of(kobj, struct device, kobj)); @@ -92,7 +92,7 @@ static ssize_t i2c_slave_eeprom_bin_write(struct file *filp, struct kobject *kob struct eeprom_data *eeprom; unsigned long flags; - if (off + count >= attr->size) + if (off + count > attr->size) return -EFBIG; eeprom = dev_get_drvdata(container_of(kobj, struct device, kobj)); -- 2.1.3