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path: root/drivers/platform/surface/surface_hotplug.c
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Diffstat (limited to 'drivers/platform/surface/surface_hotplug.c')
-rw-r--r--drivers/platform/surface/surface_hotplug.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/platform/surface/surface_hotplug.c b/drivers/platform/surface/surface_hotplug.c
index f004a2495201..c0d83ed5a208 100644
--- a/drivers/platform/surface/surface_hotplug.c
+++ b/drivers/platform/surface/surface_hotplug.c
@@ -101,18 +101,12 @@ static void shps_dsm_notify_irq(struct platform_device *pdev, enum shps_irq_type
param.type = ACPI_TYPE_INTEGER;
param.integer.value = value;
- result = acpi_evaluate_dsm(handle, &shps_dsm_guid, SHPS_DSM_REVISION,
- shps_dsm_fn_for_irq(type), &param);
-
+ result = acpi_evaluate_dsm_typed(handle, &shps_dsm_guid, SHPS_DSM_REVISION,
+ shps_dsm_fn_for_irq(type), &param, ACPI_TYPE_BUFFER);
if (!result) {
dev_err(&pdev->dev, "IRQ notification via DSM failed (irq=%d, gpio=%d)\n",
type, value);
- } else if (result->type != ACPI_TYPE_BUFFER) {
- dev_err(&pdev->dev,
- "IRQ notification via DSM failed: unexpected result type (irq=%d, gpio=%d)\n",
- type, value);
-
} else if (result->buffer.length != 1 || result->buffer.pointer[0] != 0) {
dev_err(&pdev->dev,
"IRQ notification via DSM failed: unexpected result value (irq=%d, gpio=%d)\n",
@@ -121,8 +115,7 @@ static void shps_dsm_notify_irq(struct platform_device *pdev, enum shps_irq_type
mutex_unlock(&sdev->lock[type]);
- if (result)
- ACPI_FREE(result);
+ ACPI_FREE(result);
}
static irqreturn_t shps_handle_irq(int irq, void *data)
@@ -190,7 +183,7 @@ static int shps_setup_irq(struct platform_device *pdev, enum shps_irq_type type)
return 0;
}
-static int surface_hotplug_remove(struct platform_device *pdev)
+static void surface_hotplug_remove(struct platform_device *pdev)
{
struct shps_device *sdev = platform_get_drvdata(pdev);
int i;
@@ -202,8 +195,6 @@ static int surface_hotplug_remove(struct platform_device *pdev)
mutex_destroy(&sdev->lock[i]);
}
-
- return 0;
}
static int surface_hotplug_probe(struct platform_device *pdev)