4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wei Yongjun <weiyj.lk@xxxxxxxxx>
commit 6a8b0c6b18f62a277ffb2139d0c0253fe35d7feb upstream.
free_irq() expects the same device identity that was passed to
corresponding request_irq(), otherwise the IRQ is not freed.
Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Wei Yongjun <weiyj.lk@xxxxxxxxx>
Acked-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma/at_xdmac.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -2055,7 +2055,7 @@ err_dma_unregister:
err_clk_disable:
clk_disable_unprepare(atxdmac->clk);
err_free_irq:
- free_irq(atxdmac->irq, atxdmac->dma.dev);
+ free_irq(atxdmac->irq, atxdmac);
return ret;
}
@@ -2071,7 +2071,7 @@ static int at_xdmac_remove(struct platfo
synchronize_irq(atxdmac->irq);
- free_irq(atxdmac->irq, atxdmac->dma.dev);
+ free_irq(atxdmac->irq, atxdmac);
for (i = 0; i < atxdmac->dma.chancnt; i++) {
struct at_xdmac_chan *atchan = &atxdmac->chan[i];
--
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