[PATCH] devfreq/exynos-bus: Use common error handling code in exynos_bus_target()
From: SF Markus Elfring <hidden>
Date: 2017-10-22 13:41:35
Also in:
kernel-janitors, linux-pm, linux-samsung-soc, lkml
Subsystem:
bus frequency driver for samsung exynos, device frequency (devfreq), the rest · Maintainers:
Chanwoo Choi, MyungJoo Ham, Kyungmin Park, Linus Torvalds
From: Markus Elfring <redacted> Date: Sun, 22 Oct 2017 15:33:06 +0200 Adjust jump targets so that a bit of exception handling can be better reused at the end of this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <redacted> --- drivers/devfreq/exynos-bus.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-)
diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index 49f68929e024..e38d456b2d7d 100644
--- a/drivers/devfreq/exynos-bus.c
+++ b/drivers/devfreq/exynos-bus.c@@ -124,34 +124,33 @@ static int exynos_bus_target(struct device *dev, unsigned long *freq, u32 flags) if (old_freq < new_freq) { ret = regulator_set_voltage_tol(bus->regulator, new_volt, tol); - if (ret < 0) { - dev_err(bus->dev, "failed to set voltage\n"); - goto out; - } + if (ret < 0) + goto report_failure; } ret = clk_set_rate(bus->clk, new_freq); if (ret < 0) { dev_err(dev, "failed to change clock of bus\n"); clk_set_rate(bus->clk, old_freq); - goto out; + goto unlock; } if (old_freq > new_freq) { ret = regulator_set_voltage_tol(bus->regulator, new_volt, tol); - if (ret < 0) { - dev_err(bus->dev, "failed to set voltage\n"); - goto out; - } + if (ret < 0) + goto report_failure; } bus->curr_freq = new_freq; dev_dbg(dev, "Set the frequency of bus (%luHz -> %luHz, %luHz)\n", old_freq, new_freq, clk_get_rate(bus->clk)); -out: +unlock: mutex_unlock(&bus->lock); - return ret; + +report_failure: + dev_err(bus->dev, "failed to set voltage\n"); + goto unlock; } static int exynos_bus_get_dev_status(struct device *dev,
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2.14.2