dmaengine: move .device_release missing log warning to debug level

Dmaengine core warns the drivers registering for missing .device_release
implementation. The warning is accurate for dmaengine controllers which
hotplug but not for rest.

So reduce this to a debug log.

Link: https://lore.kernel.org/r/20200306135018.2286959-1-vkoul@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index c3b1283b6d31a4c948a3060432e8d0cb0d0c350b..17909fd1820ffc7fc4c3bf74aaab22dec682234c 100644 (file)
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -1151,7 +1151,7 @@ int dma_async_device_register(struct dma_device *device)
        }
 
        if (!device->device_release)
-               dev_warn(device->dev,
+               dev_dbg(device->dev,
                         "WARN: Device release is not defined so it is not safe to unbind this driver while in use\n");
 
        kref_init(&device->ref);