usb: dwc3: gadget: Move vbus draw to workqueue context

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[ Upstream commit 54aaa3b387 ]

Currently dwc3_gadget_vbus_draw() can be called from atomic
context, which in turn invokes power-supply-core APIs. And
some these PMIC APIs have operations that may sleep, leading
to kernel panic.

Fix this by moving the vbus_draw into a workqueue context.

Fixes: 99288de360 ("usb: dwc3: add an alternate path in vbus_draw callback")
Cc: stable <stable@kernel.org>
Tested-by: Samuel Wu <wusamuel@google.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com>
Link: https://patch.msgid.link/20260204054155.3063825-1-prashanth.k@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Prashanth K 2026-02-04 11:11:55 +05:30 • committed by Sasha Levin

parent f3132336db

commit a7a80c25b6

3 changed files with 25 additions and 6 deletions

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19

drivers/usb/dwc3/core.c

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4

drivers/usb/dwc3/core.h

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8

drivers/usb/dwc3/gadget.c

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