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usb: gadget: renesas_usbf: Handle devm_pm_runtime_enable() errors

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devm_pm_runtime_enable() can fail due to memory allocation.
The current code ignores its return value, potentially causing
pm_runtime_resume_and_get() to operate on uninitialized runtime
PM state.

Check the return value of devm_pm_runtime_enable() and return on failure.

Fixes: 3e6e14ffde ("usb: gadget: udc: add Renesas RZ/N1 USBF controller support")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Acked-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251124022215.1619-1-vulab@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Haotian Zhang 2025-11-24 10:22:15 +08:00 committed by Greg Kroah-Hartman
parent df5fde297e
commit 74851fbb6d
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/gadget/udc/renesas_usbf.c
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@ -3262,7 +3262,9 @@ static int usbf_probe(struct platform_device *pdev)
if (IS_ERR(udc->regs))
return PTR_ERR(udc->regs);
devm_pm_runtime_enable(&pdev->dev);
ret = devm_pm_runtime_enable(&pdev->dev);
if (ret)
return ret;
ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret < 0)
return ret;