iio: kfifo: Set update_needed to false only if a buffer was allocated
Check whether the allocation of a new kfifo buffer failed or not before setting the update_needed flag to false. This will make iio_request_update_kfifo() try to allocate a new buffer the next time a buffer update is requested. Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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@ -38,7 +38,8 @@ static int iio_request_update_kfifo(struct iio_buffer *r)
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kfifo_free(&buf->kf);
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ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
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buf->buffer.length);
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buf->update_needed = false;
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if (ret >= 0)
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buf->update_needed = false;
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} else {
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kfifo_reset_out(&buf->kf);
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}
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