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| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2019-06-27 18:53:44 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2019-06-27 11:18:20 -0700 |
| commit | d09e6ca1381fee498f3fd0431800617daffb8fd4 (patch) | |
| tree | cd8f7c1181a8e293d8a0e77ce02cf4cf3ed97aff /drivers/clk/at91 | |
| parent | 8c938c2d00c14e6af0c3401d31443d2fd626b664 (diff) | |
| download | linux-d09e6ca1381fee498f3fd0431800617daffb8fd4.tar.gz linux-d09e6ca1381fee498f3fd0431800617daffb8fd4.tar.bz2 linux-d09e6ca1381fee498f3fd0431800617daffb8fd4.zip | |
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>
Diffstat (limited to 'drivers/clk/at91')
| -rw-r--r-- | drivers/clk/at91/sckc.c | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index a9c2ad68e155..e216bb613562 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -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); |