usb: gadget: u_audio: clean up capture endpoint on feedback failure

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u_audio_start_capture() enables the capture OUT endpoint, queues capture
requests and marks the stream active before setting up the optional
feedback endpoint.

If feedback endpoint configuration or enablement fails, the function
returns an error while the capture endpoint remains enabled and its
requests may remain queued. The current code even leaves TODO comments
at these return paths.

Unwind the already started capture endpoint on these failures. Also set
fb_ep_enabled only after usb_ep_enable() succeeds, so the software state
matches the endpoint state.

Signed-off-by: Xu Rao <raoxu@uniontech.com>
Link: https://patch.msgid.link/183621D513E0DE8B+20260611091229.4017443-1-raoxu@uniontech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Xu Rao 2026-06-11 17:12:28 +08:00 • committed by Greg Kroah-Hartman

parent 6c562228d0

commit 7a0d4f60da

1 changed files with 9 additions and 3 deletions

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drivers/usb/gadget/function/u_audio.c

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