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clk: exynos-audss: Fix memory leak on driver unbind or probe failure

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The memory allocated by basic clock divider/gate/mux (struct clk_gate,
clk_divider and clk_mux) was leaking. During driver unbind or probe
failure the driver only unregistered the clocks.

Use clk_unregister_{gate,divider,mux} to release all resources.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
This commit is contained in:
Krzysztof Kozlowski 2015-01-05 10:52:41 +01:00 committed by Michael Turquette
parent 4e3c021fb9
commit 27c76c4362
1 changed files with 22 additions and 10 deletions
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32
drivers/clk/samsung/clk-exynos-audss.c
View file

@ -82,6 +82,26 @@ static const struct of_device_id exynos_audss_clk_of_match[] = {
{},
};
static void exynos_audss_clk_teardown(void)
{
int i;
for (i = EXYNOS_MOUT_AUDSS; i < EXYNOS_DOUT_SRP; i++) {
if (!IS_ERR(clk_table[i]))
clk_unregister_mux(clk_table[i]);
}
for (; i < EXYNOS_SRP_CLK; i++) {
if (!IS_ERR(clk_table[i]))
clk_unregister_divider(clk_table[i]);
}
for (; i < clk_data.clk_num; i++) {
if (!IS_ERR(clk_table[i]))
clk_unregister_gate(clk_table[i]);
}
}
/* register exynos_audss clocks */
static int exynos_audss_clk_probe(struct platform_device *pdev)
{
@ -219,10 +239,7 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
return 0;
unregister:
for (i = 0; i < clk_data.clk_num; i++) {
if (!IS_ERR(clk_table[i]))
clk_unregister(clk_table[i]);
}
exynos_audss_clk_teardown();
if (!IS_ERR(epll))
clk_disable_unprepare(epll);
@ -232,18 +249,13 @@ unregister:
static int exynos_audss_clk_remove(struct platform_device *pdev)
{
int i;
#ifdef CONFIG_PM_SLEEP
unregister_syscore_ops(&exynos_audss_clk_syscore_ops);
#endif
of_clk_del_provider(pdev->dev.of_node);
for (i = 0; i < clk_data.clk_num; i++) {
if (!IS_ERR(clk_table[i]))
clk_unregister(clk_table[i]);
}
exynos_audss_clk_teardown();
if (!IS_ERR(epll))
clk_disable_unprepare(epll);