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Message-Id: <20230824132832.78705-14-ilpo.jarvinen@linux.intel.com>
Date: Thu, 24 Aug 2023 16:28:31 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: linux-pci@...r.kernel.org, Bjorn Helgaas <helgaas@...nel.org>,
Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>,
linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 13/14] hwmon: (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. Handle error
print with a label instead of trying to chain everything into a single
if condtion.
No functional changes intended.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
drivers/hwmon/sis5595.c | 35 ++++++++++++++++++++---------------
1 file changed, 20 insertions(+), 15 deletions(-)
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
index b0b05fd12221..0a0479501e11 100644
--- a/drivers/hwmon/sis5595.c
+++ b/drivers/hwmon/sis5595.c
@@ -798,7 +798,7 @@ static int sis5595_pci_probe(struct pci_dev *dev,
{
u16 address;
u8 enable;
- int *i;
+ int *i, err;
for (i = blacklist; *i != 0; i++) {
struct pci_dev *d;
@@ -818,8 +818,8 @@ static int sis5595_pci_probe(struct pci_dev *dev,
pci_write_config_word(dev, SIS5595_BASE_REG, force_addr);
}
- if (PCIBIOS_SUCCESSFUL !=
- pci_read_config_word(dev, SIS5595_BASE_REG, &address)) {
+ err = pci_read_config_word(dev, SIS5595_BASE_REG, &address);
+ if (err != PCIBIOS_SUCCESSFUL) {
dev_err(&dev->dev, "Failed to read ISA address\n");
return -ENODEV;
}
@@ -836,22 +836,23 @@ static int sis5595_pci_probe(struct pci_dev *dev,
return -ENODEV;
}
- if (PCIBIOS_SUCCESSFUL !=
- pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) {
+ err = pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable);
+ if (err != PCIBIOS_SUCCESSFUL) {
dev_err(&dev->dev, "Failed to read enable register\n");
return -ENODEV;
}
if (!(enable & 0x80)) {
- if ((PCIBIOS_SUCCESSFUL !=
- pci_write_config_byte(dev, SIS5595_ENABLE_REG,
- enable | 0x80))
- || (PCIBIOS_SUCCESSFUL !=
- pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable))
- || (!(enable & 0x80))) {
- /* doesn't work for some chips! */
- dev_err(&dev->dev, "Failed to enable HWM device\n");
- return -ENODEV;
- }
+ err = pci_write_config_byte(dev, SIS5595_ENABLE_REG, enable | 0x80);
+ if (err != PCIBIOS_SUCCESSFUL)
+ goto enable_fail;
+
+ err = pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable);
+ if (err != PCIBIOS_SUCCESSFUL)
+ goto enable_fail;
+
+ /* doesn't work for some chips! */
+ if (!(enable & 0x80))
+ goto enable_fail;
}
if (platform_driver_register(&sis5595_driver)) {
@@ -871,6 +872,10 @@ static int sis5595_pci_probe(struct pci_dev *dev,
*/
return -ENODEV;
+enable_fail:
+ dev_err(&dev->dev, "Failed to enable HWM device\n");
+ goto exit;
+
exit_unregister:
pci_dev_put(dev);
platform_driver_unregister(&sis5595_driver);
--
2.30.2
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