[PATCH] ASoC: codecs: lpass-rx-macro: fix PM ref leak in swclk_gate_enable

[Tang Bin]

swclk_gate_enable() calls pm_runtime_resume_and_get() (incrementing the PM
usage counter and, via of_pm_clk_add_clks, enabling mclk) before
rx_macro_mclk_enable(). On rx_macro_mclk_enable() failure it called
clk_disable_unprepare(rx->mclk) and returned, leaking the PM usage counter
and potentially unbalancing the clock that the PM clock domain also
manages. The sibling tx-macro/va-macro drivers call
pm_runtime_put_autosuspend() here; do the same.

Fixes: e38cbb75248a ("ASoC: codecs: lpass-rx-macro: Propagate regcache_sync() errors")
Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
---
 sound/soc/codecs/lpass-rx-macro.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c
index 282a6aaa9..1737d525c 100644
--- a/sound/soc/codecs/lpass-rx-macro.c
+++ b/sound/soc/codecs/lpass-rx-macro.c
@@ -3681,7 +3681,7 @@ static int swclk_gate_enable(struct clk_hw *hw)
 
 	ret = rx_macro_mclk_enable(rx, true);
 	if (ret) {
-		clk_disable_unprepare(rx->mclk);
+		pm_runtime_put_autosuspend(rx->dev);
 		return ret;
 	}
 
-- 
2.52.0.windows.1