diff options
| -rw-r--r-- | drivers/char/hw_random/omap-rng.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 5e8b50f15db7..a8c0b3dfb133 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -455,32 +455,40 @@ static int omap_rng_probe(struct platform_device *pdev) ret = pm_runtime_resume_and_get(&pdev->dev); if (ret < 0) { dev_err(&pdev->dev, "Failed to runtime_get device: %d\n", ret); - goto err_ioremap; + goto err_pm_disable; } priv->clk = devm_clk_get(&pdev->dev, NULL); - if (PTR_ERR(priv->clk) == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (PTR_ERR(priv->clk) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_pm_put; + } if (!IS_ERR(priv->clk)) { ret = clk_prepare_enable(priv->clk); if (ret) { dev_err(&pdev->dev, "Unable to enable the clk: %d\n", ret); - goto err_register; + goto err_pm_put; } + } else { + priv->clk = NULL; } priv->clk_reg = devm_clk_get(&pdev->dev, "reg"); - if (PTR_ERR(priv->clk_reg) == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (PTR_ERR(priv->clk_reg) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_clk; + } if (!IS_ERR(priv->clk_reg)) { ret = clk_prepare_enable(priv->clk_reg); if (ret) { dev_err(&pdev->dev, "Unable to enable the register clk: %d\n", ret); - goto err_register; + goto err_clk; } + } else { + priv->clk_reg = NULL; } ret = (dev->of_node) ? of_get_omap_rng_device_details(priv, pdev) : @@ -498,12 +506,14 @@ static int omap_rng_probe(struct platform_device *pdev) return 0; err_register: + clk_disable_unprepare(priv->clk_reg); +err_clk: + clk_disable_unprepare(priv->clk); +err_pm_put: priv->base = NULL; pm_runtime_put_sync(&pdev->dev); +err_pm_disable: pm_runtime_disable(&pdev->dev); - - clk_disable_unprepare(priv->clk_reg); - clk_disable_unprepare(priv->clk); err_ioremap: dev_err(dev, "initialization failed.\n"); return ret; |