[PATCH 5.10.y-cip 10/13] dmaengine: sh: rz-dmac: Fix lockdep assert warning

Biju Das
2024-07-29T15:35:39Z

commit 0e53aa3464e9a0a82bd3b926ba5999a11569c9ba upstream.

Fix the below lockdep assert warning by holding vc.lock for
vchan_get_all_descriptors().

WARNING: virt-dma.h:188 rz_dmac_terminate_all
pc : rz_dmac_terminate_all

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240625170119.173595-1-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
drivers/dma/sh/rz-dmac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/sh/rz-dmac.c b/drivers/dma/sh/rz-dmac.c
index f777addda8ba..2d31c583508a 100644
--- a/drivers/dma/sh/rz-dmac.c
+++ b/drivers/dma/sh/rz-dmac.c
@@ -540,8 +540,8 @@ static int rz_dmac_terminate_all(struct dma_chan *chan)
spin_lock_irqsave(&channel->vc.lock, flags);
list_splice_tail_init(&channel->ld_active, &channel->ld_free);
list_splice_tail_init(&channel->ld_queue, &channel->ld_free);
- spin_unlock_irqrestore(&channel->vc.lock, flags);
vchan_get_all_descriptors(&channel->vc, &head);
+ spin_unlock_irqrestore(&channel->vc.lock, flags);
vchan_dma_desc_free_list(&channel->vc, &head);

return 0;
--
2.43.0