linux-kernel - [PATCH 4.2 033/120] PM / clk: dont return int on __pm_clk

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Message-Id: <20150919171715.191911908@linuxfoundation.org>
Date:	Sat, 19 Sep 2015 10:27:53 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Colin Ian King <colin.king@...onical.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: [PATCH 4.2 033/120] PM / clk: dont return int on __pm_clk_enable()

4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Colin Ian King <colin.king@...onical.com>

commit f4745a92781b872455f32feb01d1dce92aefcb6c upstream.

Static analysis by cppcheck found an issue that was recently introduced by
commit 471f7707b6f0b1 ("PM / clock_ops: make __pm_clk_enable more generic")
where a return status in ret was not being initialised and garbage
being returned when ce->status >= PCE_STATUS_ERROR.

The fact that ret is not being checked by the caller and that
ret is only used internally __pm_clk_enable() to check if clk_enable()
was OK means we can ignore returning it instead turn
__pm_clk_enable() into function with a void return.

Fixes: 471f7707b6f0b1 ("PM / clock_ops: make __pm_clk_enable more generic")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/base/power/clock_ops.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -38,7 +38,7 @@ struct pm_clock_entry {
  * @dev: The device for the given clock
  * @ce: PM clock entry corresponding to the clock.
  */
-static inline int __pm_clk_enable(struct device *dev, struct pm_clock_entry *ce)
+static inline void __pm_clk_enable(struct device *dev, struct pm_clock_entry *ce)
 {
 	int ret;

@@ -50,8 +50,6 @@ static inline int __pm_clk_enable(struct
 			dev_err(dev, "%s: failed to enable clk %p, error %d\n",
 				__func__, ce->clk, ret);
 	}
-
-	return ret;
 }

 /**

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