Thread (1 message) 1 message, 1 author, 2018-10-10

[PATCH] clk: mvebu: armada-37xx-tbg: Balance devm_clk_get in probe

From: gregory.clement@bootlin.com (Gregory CLEMENT)
Date: 2018-10-10 18:06:56
Also in: linux-clk, lkml

Hi Stephen,
 
 On mer., oct. 10 2018, Stephen Boyd [off-list ref] wrote:
Quoting Gregory CLEMENT (2018-09-14 08:34:21)
quoted
The parent clock is get only to have its name, and then the clock is no
more used, so we can safely free it using devm_clk_put.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
 drivers/clk/mvebu/armada-37xx-tbg.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/clk/mvebu/armada-37xx-tbg.c b/drivers/clk/mvebu/armada-37xx-tbg.c
index 71f30149e80e..caaa91a41683 100644
--- a/drivers/clk/mvebu/armada-37xx-tbg.c
+++ b/drivers/clk/mvebu/armada-37xx-tbg.c
@@ -102,6 +102,7 @@ static int armada_3700_tbg_clock_probe(struct platform_device *pdev)
                return -EINVAL;
        }
        parent_name = __clk_get_name(parent);
+       devm_clk_put(dev, parent);
So then why use devm_clk_get()? Please replace both so tha
devm_clk_put() doesn't need to be used..
Indeed between the successful devm_clk_get and the devm_clk_put we don't
exit the function in error so I can use clk_get and clk_put.

Gregory
quoted
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        reg = devm_ioremap_resource(dev, res);
-- 
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering
http://bootlin.com
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