dmaengine: imx-sdma: Save imx_dma_data into sdmac
authorNicolin Chen <nicoleotsuka@gmail.com>
Mon, 16 Jun 2014 03:32:29 +0000 (11:32 +0800)
committerVinod Koul <vinod.koul@intel.com>
Fri, 25 Jul 2014 08:40:24 +0000 (14:10 +0530)
commit0b3518652c596b00c1592b5adb2544db75b5ef57
tree708e170f3140a93ec2a5fb9721b205b92107edeb
parentb1e51d771fbc9fec15785760a2f725040a0fe671
dmaengine: imx-sdma: Save imx_dma_data into sdmac

The filter() function is currently called by xlate() while it transfers
imx_dma_data as a local variable to the filter() but releases the data
right after returning a DMA channel pointer, which results chan->private
pointing an invalid memory space.

So this patch just stores the imx_dma_data into sdmac to make usre the
private pointer valid as long as the channel exists.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
drivers/dma/imx-sdma.c