Linux clock framework development
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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yunhao Tian <18373444@buaa.edu.cn>,
	Maxime Ripard <maxime@cerno.tech>,
	Sasha Levin <sashal@kernel.org>,
	linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.4 002/107] clk: sunxi-ng: v3s: Fix incorrect number of hw_clks.
Date: Fri, 24 Jan 2020 09:16:32 -0500	[thread overview]
Message-ID: <20200124141817.28793-2-sashal@kernel.org> (raw)
In-Reply-To: <20200124141817.28793-1-sashal@kernel.org>

From: Yunhao Tian <18373444@buaa.edu.cn>

[ Upstream commit 4ff40d140e2a2060ef6051800a4a9eab07624f42 ]

The hws field of sun8i_v3s_hw_clks has only 74
members. However, the number specified by CLK_NUMBER
is 77 (= CLK_I2S0 + 1). This leads to runtime segmentation
fault that is not always reproducible.

This patch fixes the problem by specifying correct clock number.

Signed-off-by: Yunhao Tian <18373444@buaa.edu.cn>
[Maxime: Also remove the CLK_NUMBER definition]
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/sunxi-ng/ccu-sun8i-v3s.c | 4 ++--
 drivers/clk/sunxi-ng/ccu-sun8i-v3s.h | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c
index 5c779eec454b6..0e36ca3bf3d52 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c
@@ -618,7 +618,7 @@ static struct clk_hw_onecell_data sun8i_v3s_hw_clks = {
 		[CLK_MBUS]		= &mbus_clk.common.hw,
 		[CLK_MIPI_CSI]		= &mipi_csi_clk.common.hw,
 	},
-	.num	= CLK_NUMBER,
+	.num	= CLK_PLL_DDR1 + 1,
 };
 
 static struct clk_hw_onecell_data sun8i_v3_hw_clks = {
@@ -700,7 +700,7 @@ static struct clk_hw_onecell_data sun8i_v3_hw_clks = {
 		[CLK_MBUS]		= &mbus_clk.common.hw,
 		[CLK_MIPI_CSI]		= &mipi_csi_clk.common.hw,
 	},
-	.num	= CLK_NUMBER,
+	.num	= CLK_I2S0 + 1,
 };
 
 static struct ccu_reset_map sun8i_v3s_ccu_resets[] = {
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h
index b0160d305a677..108eeeedcbf76 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h
@@ -51,6 +51,4 @@
 
 #define CLK_PLL_DDR1		74
 
-#define CLK_NUMBER		(CLK_I2S0 + 1)
-
 #endif /* _CCU_SUN8I_H3_H_ */
-- 
2.20.1


       reply	other threads:[~2020-01-24 14:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200124141817.28793-1-sashal@kernel.org>
2020-01-24 14:16 ` Sasha Levin [this message]
2020-01-24 14:16 ` [PATCH AUTOSEL 5.4 022/107] clk: Don't try to enable critical clocks if prepare failed Sasha Levin
2020-01-24 14:16 ` [PATCH AUTOSEL 5.4 023/107] clk: sunxi-ng: sun8i-r: Fix divider on APB0 clock Sasha Levin
2020-01-24 14:16 ` [PATCH AUTOSEL 5.4 024/107] clk: sunxi-ng: h6-r: Fix AR100/R_APB2 parent order Sasha Levin
2020-01-24 14:16 ` [PATCH AUTOSEL 5.4 027/107] clk: qcom: gcc-sdm845: Add missing flag to votable GDSCs Sasha Levin
2020-01-24 14:16 ` [PATCH AUTOSEL 5.4 028/107] clk: mmp2: Fix the order of timer mux parents Sasha Levin
2020-01-24 21:08   ` Lubomir Rintel

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