[PATCH] media: atomisp: add missing return type (fix -Werror=return-type)

[Paolo Pisati <paolo.pisati@xxxxxxxxxxxxx>]

drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c: In function 'input_system_configure_channel_sensor':
drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c:1649:1: error: control reaches end of non-void function [-Werror=return-type]
 1649 | }
      | ^
cc1: some warnings being treated as errors

Signed-off-by: Paolo Pisati <paolo.pisati@xxxxxxxxxxxxx>
---
 .../media/atomisp/pci/hive_isp_css_common/host/input_system.c   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c b/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c
index 8e085dda0c18..f36dadb5230a 100644
--- a/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c
+++ b/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c
@@ -1646,6 +1646,8 @@ static input_system_err_t input_system_configure_channel_sensor(
 	default:
 		return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 	}
+
+	return INPUT_SYSTEM_ERR_PARAMETER_NOT_SUPPORTED;
 }
 
 // Test flags and set structure.
-- 
2.30.2