diff options
| author |   Mika Westerberg <mika.westerberg@linux.intel.com> | 2012-04-05 12:15:15 +0300 |
|---|---|---|
| committer |   Grant Likely <grant.likely@secretlab.ca> | 2012-04-05 21:24:46 -0700 |
| commit | 8302c7413814e26959f69d36a0dcc1f945573bc9 (patch) | |
| tree | ba9dfe6a8fea509d0b7c20c18c0a1fc8ad971e3b /drivers/gpio/gpio-langwell.c | |
| parent | gpio: add flags to export GPIOs when requesting (diff) | |
| download | linux-dev-8302c7413814e26959f69d36a0dcc1f945573bc9.tar.xz linux-dev-8302c7413814e26959f69d36a0dcc1f945573bc9.zip | |
gpio/langwell: use devm_* helpers to simplify probe
Use devm_* helper functions where possible to make the error handling in
the probe function simpler.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/gpio/gpio-langwell.c')
| -rw-r--r-- | drivers/gpio/gpio-langwell.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-langwell.c b/drivers/gpio/gpio-langwell.c index 00692e89ef87..0bea41b8a226 100644 --- a/drivers/gpio/gpio-langwell.c +++ b/drivers/gpio/gpio-langwell.c @@ -309,7 +309,7 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev, retval = pci_enable_device(pdev); if (retval) - goto done; + return retval; retval = pci_request_regions(pdev, "langwell_gpio"); if (retval) { @@ -331,18 +331,18 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev, /* get the register base from bar0 */ start = pci_resource_start(pdev, 0); len = pci_resource_len(pdev, 0); - base = ioremap_nocache(start, len); + base = devm_ioremap_nocache(&pdev->dev, start, len); if (!base) { dev_err(&pdev->dev, "error mapping bar0\n"); retval = -EFAULT; goto err3; } - lnw = kzalloc(sizeof(struct lnw_gpio), GFP_KERNEL); + lnw = devm_kzalloc(&pdev->dev, sizeof(struct lnw_gpio), GFP_KERNEL); if (!lnw) { dev_err(&pdev->dev, "can't allocate langwell_gpio chip data\n"); retval = -ENOMEM; - goto err4; + goto err3; } lnw->reg_base = base; lnw->irq_base = irq_base; @@ -361,7 +361,7 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev, retval = gpiochip_add(&lnw->chip); if (retval) { dev_err(&pdev->dev, "langwell gpiochip_add error %d\n", retval); - goto err5; + goto err3; } irq_set_handler_data(pdev->irq, lnw); irq_set_chained_handler(pdev->irq, lnw_irq_handler); @@ -376,16 +376,12 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev, pm_runtime_put_noidle(&pdev->dev); pm_runtime_allow(&pdev->dev); - goto done; -err5: - kfree(lnw); -err4: - iounmap(base); + return 0; + err3: pci_release_regions(pdev); err2: pci_disable_device(pdev); -done: return retval; } |