i2c: sis5595: Do PCI error checks on own line

Instead of if conditions with line splits, use the usual error handling
pattern with a separate variable to improve readability.

No functional changes intended.

Signed-off-by: Ilpo Järvinen <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>

Author: ij-intel

drivers/i2c/busses/i2c-sis5595.c

@@ -175,11 +175,11 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev)
 
 	if (force_addr) {
 		dev_info(&SIS5595_dev->dev, "forcing ISA address 0x%04X\n", sis5595_base);
-		if (pci_write_config_word(SIS5595_dev, ACPI_BASE, sis5595_base)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_write_config_word(SIS5595_dev, ACPI_BASE, sis5595_base);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
-		if (pci_read_config_word(SIS5595_dev, ACPI_BASE, &a)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_read_config_word(SIS5595_dev, ACPI_BASE, &a);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
 		if ((a & ~(SIS5595_EXTENT - 1)) != sis5595_base) {
 			/* doesn't work for some chips! */
@@ -188,16 +188,16 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev)
 		}
 	}
 
-	if (pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val)
-	    != PCIBIOS_SUCCESSFUL)
+	retval = pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val);
+	if (retval != PCIBIOS_SUCCESSFUL)
 		goto error;
 	if ((val & 0x80) == 0) {
 		dev_info(&SIS5595_dev->dev, "enabling ACPI\n");
-		if (pci_write_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, val | 0x80)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_write_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, val | 0x80);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
-		if (pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
 		if ((val & 0x80) == 0) {
 			/* doesn't work for some chips? */