From d4b1e04d271bd5e19a06274629b5e6a0a0c153a8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 4 Apr 2023 09:25:14 +0200 Subject: USB: dwc3: fix runtime pm imbalance on probe errors commit 9a8ad10c9f2e0925ff26308ec6756b93fc2f4977 upstream. Make sure not to suspend the device when probe fails to avoid disabling clocks and phys multiple times. Fixes: 328082376aea ("usb: dwc3: fix runtime PM in error path") Cc: stable@vger.kernel.org # 4.8 Cc: Roger Quadros Acked-by: Thinh Nguyen Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20230404072524.19014-2-johan+linaro@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/core.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers/usb') diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 476b63618511..5058bd8d56ca 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1883,13 +1883,11 @@ static int dwc3_probe(struct platform_device *pdev) spin_lock_init(&dwc->lock); mutex_init(&dwc->mutex); + pm_runtime_get_noresume(dev); pm_runtime_set_active(dev); pm_runtime_use_autosuspend(dev); pm_runtime_set_autosuspend_delay(dev, DWC3_DEFAULT_AUTOSUSPEND_DELAY); pm_runtime_enable(dev); - ret = pm_runtime_get_sync(dev); - if (ret < 0) - goto err1; pm_runtime_forbid(dev); @@ -1954,12 +1952,10 @@ err3: dwc3_free_event_buffers(dwc); err2: - pm_runtime_allow(&pdev->dev); - -err1: - pm_runtime_put_sync(&pdev->dev); - pm_runtime_disable(&pdev->dev); - + pm_runtime_allow(dev); + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + pm_runtime_put_noidle(dev); disable_clks: dwc3_clk_disable(dwc); assert_reset: -- cgit v1.2.3