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clk: at91: sckc: improve error path for sama5d4 sck registration 

Improve error path for sama5d4 sck registration.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Claudiu Beznea 2019-06-27 18:53:44 +03:00 committed by Stephen Boyd
parent 8c938c2d00
commit d09e6ca138
1 changed files with 28 additions and 15 deletions
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43
drivers/clk/at91/sckc.c
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@ -563,7 +563,7 @@ static const struct clk_slow_bits at91sama5d4_bits = {
static void __init of_sama5d4_sckc_setup(struct device_node *np)
{
void __iomem *regbase = of_iomap(np, 0);
struct clk_hw *hw;
struct clk_hw *slow_rc, *slowck;
struct clk_sama5d4_slow_osc *osc;
struct clk_init_data init;
const char *xtal_name;
@ -573,17 +573,18 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np)
if (!regbase)
return;
hw = clk_hw_register_fixed_rate_with_accuracy(NULL, parent_names[0],
NULL, 0, 32768,
250000000);
if (IS_ERR(hw))
slow_rc = clk_hw_register_fixed_rate_with_accuracy(NULL,
parent_names[0],
NULL, 0, 32768,
250000000);
if (IS_ERR(slow_rc))
return;
xtal_name = of_clk_get_parent_name(np, 0);
osc = kzalloc(sizeof(*osc), GFP_KERNEL);
if (!osc)
return;
goto unregister_slow_rc;
init.name = parent_names[1];
init.ops = &sama5d4_slow_osc_ops;
@ -597,17 +598,29 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np)
osc->bits = &at91sama5d4_bits;
ret = clk_hw_register(NULL, &osc->hw);
if (ret) {
kfree(osc);
return;
}
if (ret)
goto free_slow_osc_data;
hw = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_names, 2,
&at91sama5d4_bits);
if (IS_ERR(hw))
return;
slowck = at91_clk_register_sam9x5_slow(regbase, "slowck",
parent_names, 2,
&at91sama5d4_bits);
if (IS_ERR(slowck))
goto unregister_slow_osc;
of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
ret = of_clk_add_hw_provider(np, of_clk_hw_simple_get, slowck);
if (WARN_ON(ret))
goto unregister_slowck;
return;
unregister_slowck:
at91_clk_unregister_sam9x5_slow(slowck);
unregister_slow_osc:
clk_hw_unregister(&osc->hw);
free_slow_osc_data:
kfree(osc);
unregister_slow_rc:
clk_hw_unregister(slow_rc);
}
CLK_OF_DECLARE(sama5d4_clk_sckc, "atmel,sama5d4-sckc",
of_sama5d4_sckc_setup);