Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v2 15/15] dmaengine: dw: set cdesc to NULL when free cyclic transfers | Date | Mon, 22 Feb 2016 18:03:50 +0200 |
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To be sure we have the cyclic transfers already gone we set cdesc to NULL. It will prevent the double free.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mans Rullgard <mans@mansr.com> --- drivers/dma/dw/core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c index cce0619..14d0df7 100644 --- a/drivers/dma/dw/core.c +++ b/drivers/dma/dw/core.c @@ -1485,6 +1485,8 @@ void dw_dma_cyclic_free(struct dma_chan *chan) kfree(cdesc->desc); kfree(cdesc); + dwc->cdesc = NULL; + clear_bit(DW_DMA_IS_CYCLIC, &dwc->flags); } EXPORT_SYMBOL(dw_dma_cyclic_free); -- 2.7.0
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