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Message-ID: <20180308045641.7814-22-alexander.levin@microsoft.com>
Date: Thu, 8 Mar 2018 04:57:41 +0000
From: Sasha Levin <Alexander.Levin@...rosoft.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"stable@...r.kernel.org" <stable@...r.kernel.org>
CC: Arnd Bergmann <arnd@...db.de>, Benson Leung <bleung@...omium.org>,
Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 4.14 22/67] cros_ec: fix nul-termination for
firmware build info
From: Arnd Bergmann <arnd@...db.de>
[ Upstream commit 50a0d71a5d20e1d3eff1d974fdc8559ad6d74892 ]
As gcc-8 reports, we zero out the wrong byte:
drivers/platform/chrome/cros_ec_sysfs.c: In function 'show_ec_version':
drivers/platform/chrome/cros_ec_sysfs.c:190:12: error: array subscript 4294967295 is above array bounds of 'uint8_t[]' [-Werror=array-bounds]
This changes the code back to what it did before changing to a
zero-length array structure.
Fixes: a841178445bb ("mfd: cros_ec: Use a zero-length array for command data")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Benson Leung <bleung@...omium.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
drivers/platform/chrome/cros_ec_sysfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/drivers/platform/chrome/cros_ec_sysfs.c
index f3baf9973989..24f1630a8b3f 100644
--- a/drivers/platform/chrome/cros_ec_sysfs.c
+++ b/drivers/platform/chrome/cros_ec_sysfs.c
@@ -187,7 +187,7 @@ static ssize_t show_ec_version(struct device *dev,
count += scnprintf(buf + count, PAGE_SIZE - count,
"Build info: EC error %d\n", msg->result);
else {
- msg->data[sizeof(msg->data) - 1] = '\0';
+ msg->data[EC_HOST_PARAM_SIZE - 1] = '\0';
count += scnprintf(buf + count, PAGE_SIZE - count,
"Build info: %s\n", msg->data);
}
--
2.14.1
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