From: Nan Li Date: Wed, 4 Mar 2015 10:48:35 +0000 (+0800) Subject: ACPI / sysfs: Treat the count field of counter_show() as unsigned X-Git-Tag: firefly_0821_release~176^2~1977^2~9^4 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7b1a13228b321ea27bd53070bcd332417069ace8;p=firefly-linux-kernel-4.4.55.git ACPI / sysfs: Treat the count field of counter_show() as unsigned 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 Signed-off-by: Lee, Chun-Yi Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 13e577c80201..0876d77b3206 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -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)