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Code Issues Releases Wiki Activity

dmaengine: bcm2835: do not call vchan_vdesc_fini() with lock held

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vchan_vdesc_fini() can't be called locked. Instead, call
vchan_terminate_vdesc() which delays the freeing of the descriptor to
vchan_synchronize().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20191216105328.15198-2-s.hauer@pengutronix.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Sascha Hauer 2019-12-16 11:53:20 +01:00 committed by Vinod Koul
parent 08baca4280
commit 5c8aacbbb3
1 changed files with 1 additions and 4 deletions
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5
drivers/dma/bcm2835-dma.c
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@ -797,10 +797,7 @@ static int bcm2835_dma_terminate_all(struct dma_chan *chan)
/* stop DMA activity */
if (c->desc) {
if (c->desc->vd.tx.flags & DMA_PREP_INTERRUPT)
vchan_terminate_vdesc(&c->desc->vd);
else
vchan_vdesc_fini(&c->desc->vd);
vchan_terminate_vdesc(&c->desc->vd);
c->desc = NULL;
bcm2835_dma_abort(c);
}