From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 28 Dec 2020 05:21:04 +0000 (+0530)
Subject: opp: Call the missing clk_put() on error
X-Git-Tag: microblaze-v5.13~446^2~1^2
X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=commitdiff_plain;h=0e1d9ca1766f5d95fb881f57b6c4a1ffa63d4648

opp: Call the missing clk_put() on error

Fix the clock reference counting by calling the missing clk_put() in the
error path.

Cc: v5.10 <stable@vger.kernel.org> # v5.10
Fixes: dd461cd9183f ("opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index c9e50836b4c2..8c905aabacc0 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1101,7 +1101,7 @@ static struct opp_table *_allocate_opp_table(struct device *dev, int index)
 	ret = dev_pm_opp_of_find_icc_paths(dev, opp_table);
 	if (ret) {
 		if (ret == -EPROBE_DEFER)
-			goto remove_opp_dev;
+			goto put_clk;
 
 		dev_warn(dev, "%s: Error finding interconnect paths: %d\n",
 			 __func__, ret);
@@ -1113,6 +1113,9 @@ static struct opp_table *_allocate_opp_table(struct device *dev, int index)
 
 	return opp_table;
 
+put_clk:
+	if (!IS_ERR(opp_table->clk))
+		clk_put(opp_table->clk);
 remove_opp_dev:
 	_remove_opp_dev(opp_dev, opp_table);
 err: