[PATCH AUTOSEL 4.19 47/50] clk: sprd: add missing kfree

[Sasha Levin]

From: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>

[ Upstream commit 5e75ea9c67433a065b0e8595ad3c91c7c0ca0d2d ]

The number of config registers for different pll clocks probably are not
same, so we have to use malloc, and should free the memory before return.

Fixes: 3e37b005580b ("clk: sprd: add adjustable pll support")
Signed-off-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>
Signed-off-by: Chunyan Zhang <zhang.lyra@xxxxxxxxx>
Link: https://lkml.kernel.org/r/20190905103009.27166-1-zhang.lyra@xxxxxxxxx
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/clk/sprd/pll.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/sprd/pll.c b/drivers/clk/sprd/pll.c
index 36b4402bf09e3..640270f51aa56 100644
--- a/drivers/clk/sprd/pll.c
+++ b/drivers/clk/sprd/pll.c
@@ -136,6 +136,7 @@ static unsigned long _sprd_pll_recalc_rate(const struct sprd_pll *pll,
 					 k2 + refin * nint * CLK_PLL_1M;
 	}
 
+	kfree(cfg);
 	return rate;
 }
 
@@ -222,6 +223,7 @@ static int _sprd_pll_set_rate(const struct sprd_pll *pll,
 	if (!ret)
 		udelay(pll->udelay);
 
+	kfree(cfg);
 	return ret;
 }
 
-- 
2.20.1