Messages in this thread | | | From | Gregory CLEMENT <> | Subject | Re: [PATCH] clk: mvebu: armada-37xx-tbg: Balance devm_clk_get in probe | Date | Wed, 10 Oct 2018 20:06:42 +0200 |
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Hi Stephen,
On mer., oct. 10 2018, Stephen Boyd <sboyd@kernel.org> wrote:
> Quoting Gregory CLEMENT (2018-09-14 08:34:21) >> 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
> >> >> 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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