[PATCH v4 1/2] acpi: Fix proper return code for function acpi_gsi_to_irq

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The function acpi_gsi_to_irq must return 0 on success as the caller
ghes_probe expects an 0 for success. This change also matches x86
implementation.

Signed-off-by: Tuan Phan <tphan@xxxxxxx>
Signed-off-by: Loc Ho <lho@xxxxxxx>
---
 drivers/acpi/gsi.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/gsi.c b/drivers/acpi/gsi.c
index ee9e0f2..7b109bd 100644
--- a/drivers/acpi/gsi.c
+++ b/drivers/acpi/gsi.c
@@ -24,7 +24,7 @@ static struct fwnode_handle *acpi_gsi_domain_id;
  *
  * irq location updated with irq value [>0 on success, 0 on failure]
  *
- * Returns: linux IRQ number on success (>0)
+ * Returns: 0 on success
  *          -EINVAL on failure
  */
 int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
@@ -37,7 +37,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
 	 * *irq == 0 means no mapping, that should
 	 * be reported as a failure
 	 */
-	return (*irq > 0) ? *irq : -EINVAL;
+	return (*irq > 0) ? 0 : -EINVAL;
 }
 EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
 
-- 
1.7.1

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