linux-kernel - [ 05/73] pwm: spear: Fix checking return value of clk_enable() and clk

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Date:	Thu,  9 May 2013 15:24:55 -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, Axel Lin <axel.lin@...ics.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Thierry Reding <thierry.reding@...onic-design.de>
Subject: [ 05/73] pwm: spear: Fix checking return value of clk_enable() and clk_prepare()

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

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

From: Axel Lin <axel.lin@...ics.com>

commit 563861cd633ae52932843477bb6ca3f1c9e2f78b upstream.

The logic to check return value of clk_enable() and clk_prepare() is reversed,
fix it.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/pwm/pwm-spear.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/pwm/pwm-spear.c
+++ b/drivers/pwm/pwm-spear.c
@@ -143,7 +143,7 @@ static int spear_pwm_enable(struct pwm_c
 	u32 val;
 
 	rc = clk_enable(pc->clk);
-	if (!rc)
+	if (rc)
 		return rc;
 
 	val = spear_pwm_readl(pc, pwm->hwpwm, PWMCR);
@@ -209,12 +209,12 @@ static int spear_pwm_probe(struct platfo
 	pc->chip.npwm = NUM_PWM;
 
 	ret = clk_prepare(pc->clk);
-	if (!ret)
+	if (ret)
 		return ret;
 
 	if (of_device_is_compatible(np, "st,spear1340-pwm")) {
 		ret = clk_enable(pc->clk);
-		if (!ret) {
+		if (ret) {
 			clk_unprepare(pc->clk);
 			return ret;
 		}


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