Commit 8eba2187 authored by Qiu-ji Chen's avatar Qiu-ji Chen Committed by Vinod Koul
Browse files

dmaengine: mediatek: Fix a flag reuse error in mtk_cqdma_tx_status() 



Fixed a flag reuse bug in the mtk_cqdma_tx_status() function.

Fixes: 157ae5ff ("dmaengine: mediatek: Fix a possible deadlock error in mtk_cqdma_tx_status()")
Cc: stable@vger.kernel.org
Reported-by: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505270641.MStzJUfU-lkp@intel.com/


Signed-off-by: default avatarQiu-ji Chen <chenqiuji666@gmail.com>
Reviewed-by: default avatarEugen Hristev <eugen.hristev@linaro.org>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250606090017.5436-1-chenqiuji666@gmail.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 19272b37

drivers/dma/mediatek/mtk-cqdma.c

+2 −2
Original line number Diff line number Diff line
@@ -449,9 +449,9 @@ static enum dma_status mtk_cqdma_tx_status(struct dma_chan *c, 
		return ret;



	spin_lock_irqsave(&cvc->pc->lock, flags);

	spin_lock_irqsave(&cvc->vc.lock, flags);

	spin_lock(&cvc->vc.lock);

	vd = mtk_cqdma_find_active_desc(c, cookie);

	spin_unlock_irqrestore(&cvc->vc.lock, flags);

	spin_unlock(&cvc->vc.lock);

	spin_unlock_irqrestore(&cvc->pc->lock, flags);



	if (vd) {