[PATCH 4.7 115/141] dmaengine: at_xdmac: fix to pass correct device identity to free_irq()

[Greg Kroah-Hartman]

4.7-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wei Yongjun <weiyj...@gmail.com>

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...@gmail.com>
Acked-by: Ludovic Desroches <ludovic.desroc...@atmel.com>
Signed-off-by: Vinod Koul <vinod.k...@intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 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
@@ -2067,7 +2067,7 @@ 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;
 }
 
@@ -2081,7 +2081,7 @@ static int at_xdmac_remove(struct platfo
        dma_async_device_unregister(&atxdmac->dma);
        clk_disable_unprepare(atxdmac->clk);
 
-       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];