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usb: gadget: pxa25x_udc: use devm_ functions

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This patch introduces the use of devm_request_irq, devm_gpio_request,
devm_clk_get etc. instead of the corresponding unmanaged interfaces. The
calls to the functions like free_irq to free the allocated resources are
removed as they are no longer required. Some labels in the probe function
are also done away with and the name of the label err_gpio_pullup is
changed to make it less specific to the context.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Himangi Saraogi 2014-06-22 12:47:51 +05:30 committed by Felipe Balbi
parent fc7af215f9
commit c63d2225e7
1 changed files with 22 additions and 51 deletions
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73
drivers/usb/gadget/pxa25x_udc.c
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@ -2105,11 +2105,9 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
if (irq < 0)
return -ENODEV;
dev->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(dev->clk)) {
retval = PTR_ERR(dev->clk);
goto err_clk;
}
dev->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(dev->clk))
return PTR_ERR(dev->clk);
pr_debug("%s: IRQ %d%s%s\n", driver_name, irq,
dev->has_cfr ? "" : " (!cfr)",
@ -2120,15 +2118,16 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
dev->dev = &pdev->dev;
dev->mach = dev_get_platdata(&pdev->dev);
dev->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
dev->transceiver = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
if (gpio_is_valid(dev->mach->gpio_pullup)) {
if ((retval = gpio_request(dev->mach->gpio_pullup,
"pca25x_udc GPIO PULLUP"))) {
retval = devm_gpio_request(&pdev->dev, dev->mach->gpio_pullup,
"pca25x_udc GPIO PULLUP");
if (retval) {
dev_dbg(&pdev->dev,
"can't get pullup gpio %d, err: %d\n",
dev->mach->gpio_pullup, retval);
goto err_gpio_pullup;
goto err;
}
gpio_direction_output(dev->mach->gpio_pullup, 0);
}
@ -2146,30 +2145,32 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
dev->vbus = 0;
/* irq setup after old hardware state is cleaned up */
retval = request_irq(irq, pxa25x_udc_irq,
0, driver_name, dev);
retval = devm_request_irq(&pdev->dev, irq, pxa25x_udc_irq, 0,
driver_name, dev);
if (retval != 0) {
pr_err("%s: can't get irq %d, err %d\n",
driver_name, irq, retval);
goto err_irq1;
goto err;
}
dev->got_irq = 1;
#ifdef CONFIG_ARCH_LUBBOCK
if (machine_is_lubbock()) {
retval = request_irq(LUBBOCK_USB_DISC_IRQ, lubbock_vbus_irq,
0, driver_name, dev);
retval = devm_request_irq(&pdev->dev, LUBBOCK_USB_DISC_IRQ,
lubbock_vbus_irq, 0, driver_name,
dev);
if (retval != 0) {
pr_err("%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_DISC_IRQ, retval);
goto err_irq_lub;
goto err;
}
retval = request_irq(LUBBOCK_USB_IRQ, lubbock_vbus_irq,
0, driver_name, dev);
retval = devm_request_irq(&pdev->dev, LUBBOCK_USB_IRQ,
lubbock_vbus_irq, 0, driver_name,
dev);
if (retval != 0) {
pr_err("%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_IRQ, retval);
goto lubbock_fail0;
goto err;
}
} else
#endif
@ -2180,22 +2181,9 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
return retval;
remove_debug_files(dev);
#ifdef CONFIG_ARCH_LUBBOCK
lubbock_fail0:
free_irq(LUBBOCK_USB_DISC_IRQ, dev);
err_irq_lub:
free_irq(irq, dev);
#endif
err_irq1:
if (gpio_is_valid(dev->mach->gpio_pullup))
gpio_free(dev->mach->gpio_pullup);
err_gpio_pullup:
if (!IS_ERR_OR_NULL(dev->transceiver)) {
usb_put_phy(dev->transceiver);
err:
if (!IS_ERR_OR_NULL(dev->transceiver))
dev->transceiver = NULL;
}
clk_put(dev->clk);
err_clk:
return retval;
}
@ -2217,25 +2205,8 @@ static int pxa25x_udc_remove(struct platform_device *pdev)
remove_debug_files(dev);
if (dev->got_irq) {
free_irq(platform_get_irq(pdev, 0), dev);
dev->got_irq = 0;
}
#ifdef CONFIG_ARCH_LUBBOCK
if (machine_is_lubbock()) {
free_irq(LUBBOCK_USB_DISC_IRQ, dev);
free_irq(LUBBOCK_USB_IRQ, dev);
}
#endif
if (gpio_is_valid(dev->mach->gpio_pullup))
gpio_free(dev->mach->gpio_pullup);
clk_put(dev->clk);
if (!IS_ERR_OR_NULL(dev->transceiver)) {
usb_put_phy(dev->transceiver);
if (!IS_ERR_OR_NULL(dev->transceiver))
dev->transceiver = NULL;
}
the_controller = NULL;
return 0;