diff options
| author | Fabrice Gasnier <fabrice.gasnier@st.com> | 2018-09-05 14:40:04 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-10-02 10:37:26 +0300 |
| commit | 5aa678c7fd5371769efde30763fb43a43a118cd0 (patch) | |
| tree | 58cf483ed19a57e7a5b7fcd42371a757a2fdf905 /drivers/usb/dwc2/hcd.c | |
| parent | 41ee1ea21052583eaf5487dfa0d0c907c9667548 (diff) | |
| download | linux-5aa678c7fd5371769efde30763fb43a43a118cd0.tar.xz | |
usb: dwc2: fix call to vbus supply exit routine, call it unlocked
dwc2_vbus_supply_exit() may call regulator_disable(). It shouldn't be
called with interrupts disabled as it might sleep.
This is seen with DEBUG_ATOMIC_SLEEP=y.
Fixes: 531ef5ebea96 ("usb: dwc2: add support for host mode external
vbus supply")
Tested-by: Artur Petrosyan <arturp@synopsys.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2/hcd.c')
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 4fdf373db011..103a0521466b 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -4481,7 +4481,9 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd) hprt0 |= HPRT0_SUSP; hprt0 &= ~HPRT0_PWR; dwc2_writel(hsotg, hprt0, HPRT0); + spin_unlock_irqrestore(&hsotg->lock, flags); dwc2_vbus_supply_exit(hsotg); + spin_lock_irqsave(&hsotg->lock, flags); } /* Enter partial_power_down */ |