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platform/x86: intel-wmi-thunderbolt: Silence error cases

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These were raised by Lukas Wunner as potential DOS attacks against
the system log by passing bad data to sysfs.

Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
This commit is contained in:
Mario Limonciello 2017-09-14 01:41:55 -05:00 committed by Darren Hart (VMware)
parent ae11c5b2c2
commit 12933ea2b8
1 changed files with 2 additions and 5 deletions
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7
drivers/platform/x86/intel-wmi-thunderbolt.c
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@ -41,13 +41,10 @@ static ssize_t force_power_store(struct device *dev,
if (mode == 0 || mode == 1) {
status = wmi_evaluate_method(INTEL_WMI_THUNDERBOLT_GUID, 0, 1,
&input, NULL);
if (ACPI_FAILURE(status)) {
pr_err("intel-wmi-thunderbolt: failed setting %s\n",
buf);
if (ACPI_FAILURE(status))
return -ENODEV;
}
} else {
pr_err("intel-wmi-thunderbolt: unsupported mode: %d", mode);
return -EINVAL;
}
return count;
}