Sparse reports a warning dma_cookie_t mic_dma_tx_submit_unlock() warning: context imbalance in mic_dma_tx_submit_unlock() - unexpected unlock The root cause is the missing annotation at mic_dma_tx_submit_unlock() Add the missing annotation __releases(&mic_ch->prep_lock) Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx> --- drivers/dma/mic_x100_dma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c index fea8608a7810..d15c41151d09 100644 --- a/drivers/dma/mic_x100_dma.c +++ b/drivers/dma/mic_x100_dma.c @@ -236,6 +236,7 @@ static inline void mic_dma_update_pending(struct mic_dma_chan *ch) } static dma_cookie_t mic_dma_tx_submit_unlock(struct dma_async_tx_descriptor *tx) + __releases(&mic_ch->prep_lock) { struct mic_dma_chan *mic_ch = to_mic_dma_chan(tx->chan); dma_cookie_t cookie; -- 2.24.1