From: Lars-Peter Clausen Date: Mon, 1 Nov 2021 14:40:54 +0000 (+0100) Subject: iio: itg3200: Call iio_trigger_notify_done() on error X-Git-Tag: v4.4.295~4 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7b89fc20756de5942649cb234b92fa432b4f2e5;p=thirdparty%2Fkernel%2Fstable.git iio: itg3200: Call iio_trigger_notify_done() on error commit 67fe29583e72b2103abb661bb58036e3c1f00277 upstream. IIO trigger handlers must call iio_trigger_notify_done() when done. This must be done even when an error occurred. Otherwise the trigger will be seen as busy indefinitely and the trigger handler will never be called again. The itg3200 driver neglects to call iio_trigger_notify_done() when there is an error reading the gyro data. Fix this by making sure that iio_trigger_notify_done() is included in the error exit path. Fixes: 9dbf091da080 ("iio: gyro: Add itg3200") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211101144055.13858-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c index e04483254b283..7157b1a731a60 100644 --- a/drivers/iio/gyro/itg3200_buffer.c +++ b/drivers/iio/gyro/itg3200_buffer.c @@ -64,9 +64,9 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p) iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp); +error_ret: iio_trigger_notify_done(indio_dev->trig); -error_ret: return IRQ_HANDLED; }