usb: dwc3: gadget: Avoid duplicate requests to enable Run/Stop

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commit 040f2dbd20 upstream.

Relocate the pullups_connected check until after it is ensured that there
are no runtime PM transitions.  If another context triggered the DWC3
core's runtime resume, it may have already enabled the Run/Stop.  Do not
re-run the entire pullup sequence again, as it may issue a core soft
reset while Run/Stop is already set.

This patch depends on
  commit 69e131d1ac ("usb: dwc3: gadget: Prevent repeat pullup()")

Fixes: 77adb8bdf4 ("usb: dwc3: gadget: Allow runtime suspend if UDC unbinded")
Cc: stable <stable@kernel.org>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220728020647.9377-1-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Wesley Cheng 2022-07-27 19:06:47 -07:00 • committed by Greg Kroah-Hartman

parent 5ea9baeecd

commit 492a177db7

1 changed files with 5 additions and 3 deletions

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drivers/usb/dwc3/gadget.c

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