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usb: musb: da8xx: fix error handling message in probe 

We print an error message when platform_device_register_full()
fails, but the initialization of the argument has been removed,
as shown in this warning:

drivers/usb/musb/da8xx.c: In function 'da8xx_probe':
drivers/usb/musb/da8xx.c:521:3: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This modifies the function to assign the return code before
checking it, and does uses the same method in the check for
usb_phy_generic_register() as well.

Fixes: 947c49afe4 ("usb: musb: da8xx: Remove mach code")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2016-09-22 15:58:31 -05:00 committed by Greg Kroah-Hartman
parent 2b9a8c4083
commit 984f3be591
1 changed files with 7 additions and 7 deletions
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14
drivers/usb/musb/da8xx.c
View File

@ -462,7 +462,6 @@ static int da8xx_probe(struct platform_device *pdev)
{ {
struct resource musb_resources[2]; struct resource musb_resources[2];
struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct platform_device *musb;
struct da8xx_glue *glue; struct da8xx_glue *glue;
struct platform_device_info pinfo; struct platform_device_info pinfo;
struct clk *clk; struct clk *clk;
@ -490,9 +489,10 @@ static int da8xx_probe(struct platform_device *pdev)
pdata->platform_ops = &da8xx_ops; pdata->platform_ops = &da8xx_ops;
glue->usb_phy = usb_phy_generic_register(); glue->usb_phy = usb_phy_generic_register();
if (IS_ERR(glue->usb_phy)) { ret = PTR_ERR_OR_ZERO(glue->usb_phy);
if (ret) {
dev_err(&pdev->dev, "failed to register usb_phy\n"); dev_err(&pdev->dev, "failed to register usb_phy\n");
return PTR_ERR(glue->usb_phy); return ret;
} }
platform_set_drvdata(pdev, glue); platform_set_drvdata(pdev, glue);
@ -516,14 +516,14 @@ static int da8xx_probe(struct platform_device *pdev)
pinfo.data = pdata; pinfo.data = pdata;
pinfo.size_data = sizeof(*pdata); pinfo.size_data = sizeof(*pdata);
glue->musb = musb = platform_device_register_full(&pinfo); glue->musb = platform_device_register_full(&pinfo);
if (IS_ERR(musb)) { ret = PTR_ERR_OR_ZERO(glue->musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
usb_phy_generic_unregister(glue->usb_phy); usb_phy_generic_unregister(glue->usb_phy);
return PTR_ERR(musb);
} }
return 0; return ret;
} }
static int da8xx_remove(struct platform_device *pdev) static int da8xx_remove(struct platform_device *pdev)