media: uvcvideo: Fix deferred probing error

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uvc_gpio_parse() can return -EPROBE_DEFER when the GPIOs it depends on
have not yet been probed. This return code should be propagated to the
caller of uvc_probe() to ensure that probing is retried when the required
GPIOs become available.

Currently, this error code is incorrectly converted to -ENODEV,
causing some internal cameras to be ignored.

This commit fixes this issue by propagating the -EPROBE_DEFER error.

Cc: stable@vger.kernel.org
Fixes: 2886477ff9 ("media: uvcvideo: Implement UVC_EXT_GPIO_UNIT")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Message-ID: <20250313-uvc-eprobedefer-v3-1-a1d312708eef@chromium.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

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This commit is contained in:

Ricardo Ribalda 2025-03-13 12:20:39 +00:00 • committed by Hans Verkuil

parent a70705d3c0

commit 387e893930

1 changed files with 19 additions and 8 deletions

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drivers/media/usb/uvc/uvc_driver.c

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