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ACPI / sysfs: Treat the count field of counter_show() as unsigned

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The count field is an unsigned 32bit value, and the
counter_show() function should also treat it as a unsigned
value.

Otherwise the counter may show negative number as we found on a
machine:
...
gpe23:        0   invalid
gpe24: -2071733   enabled
gpe25:        0   invalid
...
gpe_all: -2070980
sci: -2070949

Signed-off-by: Nan Li <nli@suse.com>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Nan Li 2015-03-04 18:48:35 +08:00 committed by Rafael J. Wysocki
parent 9eccca0843
commit 7b1a13228b
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/sysfs.c
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@ -527,7 +527,7 @@ static ssize_t counter_show(struct kobject *kobj,
acpi_irq_not_handled;
all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
acpi_gpe_count;
size = sprintf(buf, "%8d", all_counters[index].count);
size = sprintf(buf, "%8u", all_counters[index].count);
/* "gpe_all" or "sci" */
if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)