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hwspinlock: sprd: Use devm_add_action_or_reset() for calls to clk_disable_unprepare() 

Use devm_add_action_or_reset() for calls to clk_disable_unprepare(),
which can simplify the error handling.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Baolin Wang 2019-09-27 15:10:46 +08:00 committed by Bjorn Andersson
parent 3070c41643
commit b4d64193d4
1 changed files with 15 additions and 2 deletions
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17
drivers/hwspinlock/sprd_hwspinlock.c
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@ -79,6 +79,13 @@ static const struct hwspinlock_ops sprd_hwspinlock_ops = {
.relax = sprd_hwspinlock_relax,
};
static void sprd_hwspinlock_disable(void *data)
{
struct sprd_hwspinlock_dev *sprd_hwlock = data;
clk_disable_unprepare(sprd_hwlock->clk);
}
static int sprd_hwspinlock_probe(struct platform_device *pdev)
{
struct sprd_hwspinlock_dev *sprd_hwlock;
@ -109,6 +116,14 @@ static int sprd_hwspinlock_probe(struct platform_device *pdev)
if (ret)
return ret;
ret = devm_add_action_or_reset(&pdev->dev, sprd_hwspinlock_disable,
sprd_hwlock);
if (ret) {
dev_err(&pdev->dev,
"Failed to add hwspinlock disable action\n");
return ret;
}
/* set the hwspinlock to record user id to identify subsystems */
writel(HWSPINLOCK_USER_BITS, sprd_hwlock->base + HWSPINLOCK_RECCTRL);
@ -124,7 +139,6 @@ static int sprd_hwspinlock_probe(struct platform_device *pdev)
&sprd_hwspinlock_ops, 0, SPRD_HWLOCKS_NUM);
if (ret) {
pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(sprd_hwlock->clk);
return ret;
}
@ -137,7 +151,6 @@ static int sprd_hwspinlock_remove(struct platform_device *pdev)
hwspin_lock_unregister(&sprd_hwlock->bank);
pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(sprd_hwlock->clk);
return 0;
}