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From: <conor.dooley@microchip.com>
To: <mani@kernel.org>, <Mmturquette@baylibre.com>, <sboyd@kernel.org>,
	<linux-clk@vger.kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <daire.mcnamara@microchip.com>,
	<mail@conchuod.ie>, Conor Dooley <conor.dooley@microchip.com>
Subject: [PATCH] clk: bm1880: remove kfrees on static allocations
Date: Thu, 23 Dec 2021 15:42:44 +0000	[thread overview]
Message-ID: <20211223154244.1024062-1-conor.dooley@microchip.com> (raw)

From: Conor Dooley <conor.dooley@microchip.com>

bm1880_clk_unregister_pll & bm1880_clk_unregister_div both try to
free statically allocated variables, so remove those kfrees.

For example, if we take L703 kfree(div_hw):
- div_hw is a bm1880_div_hw_clock pointer
- in bm1880_clk_register_plls this is pointed to an element of arg1:
  struct bm1880_div_hw_clock *clks
- in the probe, where bm1880_clk_register_plls is called arg1 is
  bm1880_div_clks, defined on L371:
  static struct bm1880_div_hw_clock bm1880_div_clks[]

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 drivers/clk/clk-bm1880.c | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/clk/clk-bm1880.c b/drivers/clk/clk-bm1880.c
index e6d6599d310a..fad78a22218e 100644
--- a/drivers/clk/clk-bm1880.c
+++ b/drivers/clk/clk-bm1880.c
@@ -522,14 +522,6 @@ static struct clk_hw *bm1880_clk_register_pll(struct bm1880_pll_hw_clock *pll_cl
 	return hw;
 }
 
-static void bm1880_clk_unregister_pll(struct clk_hw *hw)
-{
-	struct bm1880_pll_hw_clock *pll_hw = to_bm1880_pll_clk(hw);
-
-	clk_hw_unregister(hw);
-	kfree(pll_hw);
-}
-
 static int bm1880_clk_register_plls(struct bm1880_pll_hw_clock *clks,
 				    int num_clks,
 				    struct bm1880_clock_data *data)
@@ -555,7 +547,7 @@ static int bm1880_clk_register_plls(struct bm1880_pll_hw_clock *clks,
 
 err_clk:
 	while (i--)
-		bm1880_clk_unregister_pll(data->hw_data.hws[clks[i].pll.id]);
+		clk_hw_unregister(data->hw_data.hws[clks[i].pll.id]);
 
 	return PTR_ERR(hw);
 }
@@ -695,14 +687,6 @@ static struct clk_hw *bm1880_clk_register_div(struct bm1880_div_hw_clock *div_cl
 	return hw;
 }
 
-static void bm1880_clk_unregister_div(struct clk_hw *hw)
-{
-	struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw);
-
-	clk_hw_unregister(hw);
-	kfree(div_hw);
-}
-
 static int bm1880_clk_register_divs(struct bm1880_div_hw_clock *clks,
 				    int num_clks,
 				    struct bm1880_clock_data *data)
@@ -729,7 +713,7 @@ static int bm1880_clk_register_divs(struct bm1880_div_hw_clock *clks,
 
 err_clk:
 	while (i--)
-		bm1880_clk_unregister_div(data->hw_data.hws[clks[i].div.id]);
+		clk_hw_unregister(data->hw_data.hws[clks[i].div.id]);
 
 	return PTR_ERR(hw);
 }
-- 
2.30.2


WARNING: multiple messages have this Message-ID (diff)
From: <conor.dooley@microchip.com>
To: <mani@kernel.org>, <Mmturquette@baylibre.com>, <sboyd@kernel.org>,
	<linux-clk@vger.kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <daire.mcnamara@microchip.com>,
	<mail@conchuod.ie>, Conor Dooley <conor.dooley@microchip.com>
Subject: [PATCH] clk: bm1880: remove kfrees on static allocations
Date: Thu, 23 Dec 2021 15:42:44 +0000	[thread overview]
Message-ID: <20211223154244.1024062-1-conor.dooley@microchip.com> (raw)

From: Conor Dooley <conor.dooley@microchip.com>

bm1880_clk_unregister_pll & bm1880_clk_unregister_div both try to
free statically allocated variables, so remove those kfrees.

For example, if we take L703 kfree(div_hw):
- div_hw is a bm1880_div_hw_clock pointer
- in bm1880_clk_register_plls this is pointed to an element of arg1:
  struct bm1880_div_hw_clock *clks
- in the probe, where bm1880_clk_register_plls is called arg1 is
  bm1880_div_clks, defined on L371:
  static struct bm1880_div_hw_clock bm1880_div_clks[]

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 drivers/clk/clk-bm1880.c | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/clk/clk-bm1880.c b/drivers/clk/clk-bm1880.c
index e6d6599d310a..fad78a22218e 100644
--- a/drivers/clk/clk-bm1880.c
+++ b/drivers/clk/clk-bm1880.c
@@ -522,14 +522,6 @@ static struct clk_hw *bm1880_clk_register_pll(struct bm1880_pll_hw_clock *pll_cl
 	return hw;
 }
 
-static void bm1880_clk_unregister_pll(struct clk_hw *hw)
-{
-	struct bm1880_pll_hw_clock *pll_hw = to_bm1880_pll_clk(hw);
-
-	clk_hw_unregister(hw);
-	kfree(pll_hw);
-}
-
 static int bm1880_clk_register_plls(struct bm1880_pll_hw_clock *clks,
 				    int num_clks,
 				    struct bm1880_clock_data *data)
@@ -555,7 +547,7 @@ static int bm1880_clk_register_plls(struct bm1880_pll_hw_clock *clks,
 
 err_clk:
 	while (i--)
-		bm1880_clk_unregister_pll(data->hw_data.hws[clks[i].pll.id]);
+		clk_hw_unregister(data->hw_data.hws[clks[i].pll.id]);
 
 	return PTR_ERR(hw);
 }
@@ -695,14 +687,6 @@ static struct clk_hw *bm1880_clk_register_div(struct bm1880_div_hw_clock *div_cl
 	return hw;
 }
 
-static void bm1880_clk_unregister_div(struct clk_hw *hw)
-{
-	struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw);
-
-	clk_hw_unregister(hw);
-	kfree(div_hw);
-}
-
 static int bm1880_clk_register_divs(struct bm1880_div_hw_clock *clks,
 				    int num_clks,
 				    struct bm1880_clock_data *data)
@@ -729,7 +713,7 @@ static int bm1880_clk_register_divs(struct bm1880_div_hw_clock *clks,
 
 err_clk:
 	while (i--)
-		bm1880_clk_unregister_div(data->hw_data.hws[clks[i].div.id]);
+		clk_hw_unregister(data->hw_data.hws[clks[i].div.id]);
 
 	return PTR_ERR(hw);
 }
-- 
2.30.2


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             reply	other threads:[~2021-12-23 15:42 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-23 15:42 conor.dooley [this message]
2021-12-23 15:42 ` [PATCH] clk: bm1880: remove kfrees on static allocations conor.dooley
2022-01-07  1:46 ` Stephen Boyd
2022-01-07  1:46   ` Stephen Boyd

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