Commit f22eb140 authored Apr 19, 2013 by Lars-Peter Clausen Committed by Vinod Koul May 02, 2013

dma: of: Fix of_node reference leak



of_dma_request_slave_channel() currently does not drop the reference to the
dma_spec of_node if no DMA controller matching the of_node could be found. This
patch fixes it by always calling of_node_put().

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent af31826d

drivers/dma/of-dma.c

+6 −5

Original line number	Diff line number	Diff line
		@@ -221,12 +221,13 @@ struct dma_chan of_dma_request_slave_channel(struct device_node np,

		ofdma = of_dma_get_controller(&dma_spec);

		if (!ofdma)
		continue;

		if (ofdma) {
		chan = ofdma->of_dma_xlate(&dma_spec, ofdma);

		of_dma_put_controller(ofdma);
		} else {
		chan = NULL;
		}

		of_node_put(dma_spec.np);