[PATCH 5.16 0996/1039] dmaengine: at_xdmac: Print debug message after realeasing the lock

From: Greg Kroah-Hartman
Date: Mon Jan 24 2022 - 17:49:09 EST


From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>

commit 5edc24ac876a928f36f407a0fcdb33b94a3a210f upstream.

It is desirable to do the prints without the lock held if possible, so
move the print after the lock is released.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20211215110115.191749-4-tudor.ambarus@xxxxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma/at_xdmac.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -473,10 +473,12 @@ static dma_cookie_t at_xdmac_tx_submit(s
spin_lock_irqsave(&atchan->lock, irqflags);
cookie = dma_cookie_assign(tx);

- dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
- __func__, atchan, desc);
list_add_tail(&desc->xfer_node, &atchan->xfers_list);
spin_unlock_irqrestore(&atchan->lock, irqflags);
+
+ dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
+ __func__, atchan, desc);
+
return cookie;
}