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path: root/drivers/acpi/events/evgpe.c
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Diffstat (limited to 'drivers/acpi/events/evgpe.c')
-rw-r--r--drivers/acpi/events/evgpe.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index f64f977dd3d5..7d7b81af972e 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -207,6 +207,7 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
if (write_to_hardware) {
+
/* Clear the GPE (of stale events), then enable it */
status = acpi_hw_clear_gpe(gpe_event_info);
@@ -313,6 +314,7 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
/* A NULL gpe_block means use the FADT-defined GPE block(s) */
if (!gpe_device) {
+
/* Examine GPE Block 0 and 1 (These blocks are permanent) */
for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) {
@@ -402,6 +404,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
* Find all currently active GP events.
*/
for (i = 0; i < gpe_block->register_count; i++) {
+
/* Get the next status/enable pair */
gpe_register_info = &gpe_block->register_info[i];
@@ -437,6 +440,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
enabled_status_byte = (u8) (status_reg & enable_reg);
if (!enabled_status_byte) {
+
/* No active GPEs in this register, move on */
continue;
@@ -445,6 +449,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
/* Now look at the individual GPEs in this byte register */
for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+
/* Examine one GPE bit */
if (enabled_status_byte &