* [PATCH AUTOSEL 5.10 011/137] clk: renesas: rcar-usb2-clock-sel: Fix error handling in .probe()
[not found] <20210706112203.2062605-1-sashal@kernel.org>
@ 2021-07-06 11:19 ` Sasha Levin
2021-07-06 11:20 ` [PATCH AUTOSEL 5.10 036/137] clk: renesas: r8a77995: Add ZA2 clock Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2021-07-06 11:19 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Dinghao Liu, Geert Uytterhoeven, Sasha Levin, linux-renesas-soc,
linux-clk
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
[ Upstream commit a20a40a8bbc2cf4b29d7248ea31e974e9103dd7f ]
The error handling paths after pm_runtime_get_sync() have no refcount
decrement, which leads to refcount leak.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20210415073338.22287-1-dinghao.liu@zju.edu.cn
[geert: Remove now unused variable priv]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/renesas/rcar-usb2-clock-sel.c | 24 ++++++++++++++---------
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/drivers/clk/renesas/rcar-usb2-clock-sel.c b/drivers/clk/renesas/rcar-usb2-clock-sel.c
index d4c02986c34e..0ccc6e709a38 100644
--- a/drivers/clk/renesas/rcar-usb2-clock-sel.c
+++ b/drivers/clk/renesas/rcar-usb2-clock-sel.c
@@ -128,10 +128,8 @@ static int rcar_usb2_clock_sel_resume(struct device *dev)
static int rcar_usb2_clock_sel_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct usb2_clock_sel_priv *priv = platform_get_drvdata(pdev);
of_clk_del_provider(dev->of_node);
- clk_hw_unregister(&priv->hw);
pm_runtime_put(dev);
pm_runtime_disable(dev);
@@ -164,9 +162,6 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev)
if (IS_ERR(priv->rsts))
return PTR_ERR(priv->rsts);
- pm_runtime_enable(dev);
- pm_runtime_get_sync(dev);
-
clk = devm_clk_get(dev, "usb_extal");
if (!IS_ERR(clk) && !clk_prepare_enable(clk)) {
priv->extal = !!clk_get_rate(clk);
@@ -183,6 +178,8 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev)
return -ENOENT;
}
+ pm_runtime_enable(dev);
+ pm_runtime_get_sync(dev);
platform_set_drvdata(pdev, priv);
dev_set_drvdata(dev, priv);
@@ -193,11 +190,20 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev)
init.num_parents = 0;
priv->hw.init = &init;
- clk = clk_register(NULL, &priv->hw);
- if (IS_ERR(clk))
- return PTR_ERR(clk);
+ ret = devm_clk_hw_register(NULL, &priv->hw);
+ if (ret)
+ goto pm_put;
+
+ ret = of_clk_add_hw_provider(np, of_clk_hw_simple_get, &priv->hw);
+ if (ret)
+ goto pm_put;
+
+ return 0;
- return of_clk_add_hw_provider(np, of_clk_hw_simple_get, &priv->hw);
+pm_put:
+ pm_runtime_put(dev);
+ pm_runtime_disable(dev);
+ return ret;
}
static const struct dev_pm_ops rcar_usb2_clock_sel_pm_ops = {
--
2.30.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH AUTOSEL 5.10 036/137] clk: renesas: r8a77995: Add ZA2 clock
[not found] <20210706112203.2062605-1-sashal@kernel.org>
2021-07-06 11:19 ` [PATCH AUTOSEL 5.10 011/137] clk: renesas: rcar-usb2-clock-sel: Fix error handling in .probe() Sasha Levin
@ 2021-07-06 11:20 ` Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2021-07-06 11:20 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Kuninori Morimoto, Geert Uytterhoeven, Sasha Levin,
linux-renesas-soc, linux-clk
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[ Upstream commit 790c06cc5df263cdaff748670cc65958c81b0951 ]
R-Car D3 ZA2 clock is from PLL0D3 or S0,
and it can be controlled by ZA2CKCR.
It is needed for R-Car Sound, but is not used so far.
Using default settings is very enough at this point.
This patch adds it by DEF_FIXED().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87pmxclrmy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/renesas/r8a77995-cpg-mssr.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/renesas/r8a77995-cpg-mssr.c b/drivers/clk/renesas/r8a77995-cpg-mssr.c
index 5b4691117b47..026e2612c33c 100644
--- a/drivers/clk/renesas/r8a77995-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77995-cpg-mssr.c
@@ -75,6 +75,7 @@ static const struct cpg_core_clk r8a77995_core_clks[] __initconst = {
DEF_RATE(".oco", CLK_OCO, 8 * 1000 * 1000),
/* Core Clock Outputs */
+ DEF_FIXED("za2", R8A77995_CLK_ZA2, CLK_PLL0D3, 2, 1),
DEF_FIXED("z2", R8A77995_CLK_Z2, CLK_PLL0D3, 1, 1),
DEF_FIXED("ztr", R8A77995_CLK_ZTR, CLK_PLL1, 6, 1),
DEF_FIXED("zt", R8A77995_CLK_ZT, CLK_PLL1, 4, 1),
--
2.30.2
^ permalink raw reply related [flat|nested] 2+ messages in thread