| Message ID | 20180914153421.7090-1-gregory.clement@bootlin.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | clk: mvebu: armada-37xx-tbg: Balance devm_clk_get in probe | expand |
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.. > > res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > reg = devm_ioremap_resource(dev, res);
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);
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); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); reg = devm_ioremap_resource(dev, res);
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(+)