USB: serial: metro-usb: fix unthrottle race

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If the completion handler races with unthrottle() both functions may try
to resubmit the same interrupt-in urb, but at most one will succeed.

Fix the unthrottle logic using a throttle-requested flag so that only
one attempt to resubmit the urb is made to avoid logging an error.

Fixes: 43d186fe99 ("USB: serial: add metro-usb driver to the tree")
Signed-off-by: Johan Hovold <johan@kernel.org>

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Johan Hovold 2026-06-23 17:21:47 +02:00

parent c41d491929

commit 563cd5aacd

1 changed files with 17 additions and 8 deletions

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drivers/usb/serial/metro-usb.c

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