[PATCH -next] thermal: int340x: processor_thermal: Fix warning for return value

Fix smatch warnings:
drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c:258 proc_thermal_pci_probe() warn: missing error code 'ret'

Use PTR_ERR to return failure of thermal_zone_device_register().

Reported-by: kernel test robot <redacted>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
 .../intel/int340x_thermal/processor_thermal_device_pci.c      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
index fea4a3ffd838..99ac7994b8f4 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c

@@ -254,8 +254,10 @@ static int  proc_thermal_pci_probe(struct pci_dev *pdev, const struct pci_device
 	pci_info->tzone = thermal_zone_device_register("TCPU_PCI", 1, 1, pci_info,
 							&tzone_ops,
 							&tzone_params, 0, 0);
-	if (IS_ERR(pci_info->tzone))
+	if (IS_ERR(pci_info->tzone)) {
+		ret = PTR_ERR(pci_info->tzone);
 		goto err_ret_mmio;
+	}
 
 	/* request and enable interrupt */
 	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);

-- 
2.27.0