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cros_ec: fix nul-termination for firmware build info 

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: a841178445 ("mfd: cros_ec: Use a zero-length array for command data")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benson Leung <bleung@chromium.org>
This commit is contained in:
Arnd Bergmann 2017-12-04 15:49:48 +01:00 committed by Benson Leung
parent a376cd9160
commit 50a0d71a5d
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GPG Key ID: 1F09F57B0A2FE658
1 changed files with 1 additions and 1 deletions
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2
drivers/platform/chrome/cros_ec_sysfs.c
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@ -185,7 +185,7 @@ 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);
}