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dmaengine: move module_/dma_device_put() after route free

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We call dma_device_put() and module_put() after invoking
.device_free_chan_resources callback, but we should also take care of
router devices and invoke this after .route_free callback. So move it
after .route_free

Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Vinod Koul 2019-12-24 10:22:15 +05:30
parent bf453a0a18
commit 83c77940db
1 changed files with 3 additions and 3 deletions
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6
drivers/dma/dmaengine.c
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@ -427,15 +427,15 @@ static void dma_chan_put(struct dma_chan *chan)
chan->device->device_free_chan_resources(chan);
}
dma_device_put(chan->device);
module_put(dma_chan_to_owner(chan));
/* If the channel is used via a DMA request router, free the mapping */
if (chan->router && chan->router->route_free) {
chan->router->route_free(chan->router->dev, chan->route_data);
chan->router = NULL;
chan->route_data = NULL;
}
dma_device_put(chan->device);
module_put(dma_chan_to_owner(chan));
}
enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie)