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

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[ Upstream commit 8eba218739 ]

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

Fixes: 157ae5ffd7 ("dmaengine: mediatek: Fix a possible deadlock error in mtk_cqdma_tx_status()")
Cc: stable@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505270641.MStzJUfU-lkp@intel.com/
Signed-off-by: Qiu-ji Chen <chenqiuji666@gmail.com>
Reviewed-by: Eugen Hristev <eugen.hristev@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250606090017.5436-1-chenqiuji666@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Qiu-ji Chen 2025-06-06 17:00:17 +08:00 committed by Greg Kroah-Hartman
parent b521afbe45
commit 3e7c1c70ab
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/mediatek/mtk-cqdma.c
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@ -450,9 +450,9 @@ 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) {