[PATCHv2 3/6] thermal: exynos: Check before clk_disable_unprepare() not needed

[Anand Moon]

All code in clk_disable_unprepare() already checks the clk ptr using
IS_ERR_OR_NULL so there is no need to check it again before calling it.
A lot of other drivers already rely on this behaviour, so it's safe
to do so here.

Cc: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
---
v1: improve the commit message
---
 drivers/thermal/samsung/exynos_tmu.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 1ef90dc52c08..58ff1b577c47 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -289,8 +289,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 
 	mutex_lock(&data->lock);
 	clk_enable(data->clk);
-	if (!IS_ERR(data->clk_sec))
-		clk_enable(data->clk_sec);
+	clk_enable(data->clk_sec);
 
 	status = readb(data->base + EXYNOS_TMU_REG_STATUS);
 	if (!status) {
@@ -323,8 +322,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 err:
 	clk_disable(data->clk);
 	mutex_unlock(&data->lock);
-	if (!IS_ERR(data->clk_sec))
-		clk_disable(data->clk_sec);
+	clk_disable(data->clk_sec);
 out:
 	return ret;
 }
@@ -1119,8 +1117,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 err_thermal:
 	thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd);
 err_clk_sec:
-	if (!IS_ERR(data->clk_sec))
-		clk_disable_unprepare(data->clk_sec);
+	clk_disable_unprepare(data->clk_sec);
 err_sclk:
 	clk_disable_unprepare(data->sclk);
 err_clk_apbif:
@@ -1142,8 +1139,7 @@ static int exynos_tmu_remove(struct platform_device *pdev)
 
 	clk_disable_unprepare(data->sclk);
 	clk_disable_unprepare(data->clk);
-	if (!IS_ERR(data->clk_sec))
-		clk_disable_unprepare(data->clk_sec);
+	clk_disable_unprepare(data->clk_sec);
 
 	if (!IS_ERR(data->regulator))
 		regulator_disable(data->regulator);
-- 
2.36.1