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dmaengine: Use of_property_present() for testing DT property presence

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It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230310144704.1541976-1-robh@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Rob Herring 2023-03-10 08:47:03 -06:00 committed by Vinod Koul
parent 9f7d471821
commit 3765af04f4
1 changed files with 1 additions and 1 deletions
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drivers/dma/of-dma.c
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@ -264,7 +264,7 @@ struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
}
/* Silently fail if there is not even the "dmas" property */
if (!of_find_property(np, "dmas", NULL))
if (!of_property_present(np, "dmas"))
return ERR_PTR(-ENODEV);
count = of_property_count_strings(np, "dma-names");