[PATCH 5.15.y] platform/x86: int3472: Fix uninitialised variable warning

[Sasha Levin <sashal@kernel.org>]

From: Sakari Ailus <sakari.ailus@linux.intel.com>

[ Upstream commit 70e6384fe0f4cf9768944f81924f6c1478b0ce43 ]

Fix a compiler warning about an uninitialised err_msg variable by printing
the error where it is handled:

drivers/platform/x86/intel/int3472/discrete.c:440:24: warning: ‘err_msg’ may be used uninitialized [-Wmaybe-uninitialized]
  440 |                 return dev_err_probe(int3472->dev, ret, err_msg);

Fixes: 5de691bffe57 ("platform/x86: Add intel_skl_int3472 driver")
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
[ sashal: adapted error reporting to the older per-type GPIO mapping handlers ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/intel/int3472/discrete.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
index 31494f4247864..517103ea252e5 100644
--- a/drivers/platform/x86/intel/int3472/discrete.c
+++ b/drivers/platform/x86/intel/int3472/discrete.c
@@ -227,7 +227,6 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
 	struct int3472_discrete_device *int3472 = data;
 	struct acpi_resource_gpio *agpio;
 	union acpi_object *obj;
-	const char *err_msg;
 	int ret;
 	u8 type;
 
@@ -256,27 +255,31 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
 		ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "reset",
 						     GPIO_ACTIVE_LOW);
 		if (ret)
-			err_msg = "Failed to map reset pin to sensor\n";
+			dev_err_probe(int3472->dev, ret,
+				      "Failed to map reset pin to sensor\n");
 
 		break;
 	case INT3472_GPIO_TYPE_POWERDOWN:
 		ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, "powerdown",
 						     GPIO_ACTIVE_LOW);
 		if (ret)
-			err_msg = "Failed to map powerdown pin to sensor\n";
+			dev_err_probe(int3472->dev, ret,
+				      "Failed to map powerdown pin to sensor\n");
 
 		break;
 	case INT3472_GPIO_TYPE_CLK_ENABLE:
 	case INT3472_GPIO_TYPE_PRIVACY_LED:
 		ret = skl_int3472_map_gpio_to_clk(int3472, agpio, type);
 		if (ret)
-			err_msg = "Failed to map GPIO to clock\n";
+			dev_err_probe(int3472->dev, ret,
+				      "Failed to map GPIO to clock\n");
 
 		break;
 	case INT3472_GPIO_TYPE_POWER_ENABLE:
 		ret = skl_int3472_register_regulator(int3472, agpio);
 		if (ret)
-			err_msg = "Failed to map regulator to sensor\n";
+			dev_err_probe(int3472->dev, ret,
+				      "Failed to map regulator to sensor\n");
 
 		break;
 	default:
@@ -290,9 +293,6 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
 	int3472->ngpios++;
 	ACPI_FREE(obj);
 
-	if (ret < 0)
-		return dev_err_probe(int3472->dev, ret, err_msg);
-
 	return ret;
 }
 
-- 
2.53.0