From: Stephen Boyd <sboyd@codeaurora.org>
To: Mike Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Lee Jones <lee.jones@linaro.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Russell King <linux@arm.linux.org.uk>
Subject: [PATCH 01/14] mfd: intel_quark_i2c_gpio: Use clkdev_create()
Date: Mon, 8 Feb 2016 17:45:28 -0800 [thread overview]
Message-ID: <1454982341-22715-2-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1454982341-22715-1-git-send-email-sboyd@codeaurora.org>
Convert this driver to use clkdev_create() instead of
clk_register_clkdevs(). The latter API is only used by this driver,
although this driver only allocates one clk to add anyway.
Furthermore, this driver allocates the clk_lookup structure with
devm, but clkdev_drop() will free that structure when passed,
leading to a double free when this driver is removed. Clean it
all up and pave the way for the removal of clk_register_clkdevs().
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/mfd/intel_quark_i2c_gpio.c | 26 +++++++++-----------------
1 file changed, 9 insertions(+), 17 deletions(-)
diff --git a/drivers/mfd/intel_quark_i2c_gpio.c b/drivers/mfd/intel_quark_i2c_gpio.c
index 042137465300..bdc5e27222c0 100644
--- a/drivers/mfd/intel_quark_i2c_gpio.c
+++ b/drivers/mfd/intel_quark_i2c_gpio.c
@@ -52,8 +52,6 @@
/* The Quark I2C controller source clock */
#define INTEL_QUARK_I2C_CLK_HZ 33000000
-#define INTEL_QUARK_I2C_NCLK 1
-
struct intel_quark_mfd {
struct pci_dev *pdev;
struct clk *i2c_clk;
@@ -128,30 +126,24 @@ MODULE_DEVICE_TABLE(pci, intel_quark_mfd_ids);
static int intel_quark_register_i2c_clk(struct intel_quark_mfd *quark_mfd)
{
struct pci_dev *pdev = quark_mfd->pdev;
- struct clk_lookup *i2c_clk_lookup;
struct clk *i2c_clk;
- int ret;
-
- i2c_clk_lookup = devm_kcalloc(&pdev->dev, INTEL_QUARK_I2C_NCLK,
- sizeof(*i2c_clk_lookup), GFP_KERNEL);
- if (!i2c_clk_lookup)
- return -ENOMEM;
-
- i2c_clk_lookup[0].dev_id = INTEL_QUARK_I2C_CONTROLLER_CLK;
i2c_clk = clk_register_fixed_rate(&pdev->dev,
INTEL_QUARK_I2C_CONTROLLER_CLK, NULL,
CLK_IS_ROOT, INTEL_QUARK_I2C_CLK_HZ);
+ if (IS_ERR(i2c_clk))
+ return PTR_ERR(i2c_clk);
- quark_mfd->i2c_clk_lookup = i2c_clk_lookup;
quark_mfd->i2c_clk = i2c_clk;
+ quark_mfd->i2c_clk_lookup = clkdev_create(i2c_clk, NULL,
+ INTEL_QUARK_I2C_CONTROLLER_CLK);
- ret = clk_register_clkdevs(i2c_clk, i2c_clk_lookup,
- INTEL_QUARK_I2C_NCLK);
- if (ret)
- dev_err(&pdev->dev, "Fixed clk register failed: %d\n", ret);
+ if (!quark_mfd->i2c_clk_lookup) {
+ dev_err(&pdev->dev, "Fixed clk register failed\n");
+ return -ENOMEM;
+ }
- return ret;
+ return 0;
}
static void intel_quark_unregister_i2c_clk(struct pci_dev *pdev)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
WARNING: multiple messages have this Message-ID (diff)
From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/14] mfd: intel_quark_i2c_gpio: Use clkdev_create()
Date: Mon, 8 Feb 2016 17:45:28 -0800 [thread overview]
Message-ID: <1454982341-22715-2-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1454982341-22715-1-git-send-email-sboyd@codeaurora.org>
Convert this driver to use clkdev_create() instead of
clk_register_clkdevs(). The latter API is only used by this driver,
although this driver only allocates one clk to add anyway.
Furthermore, this driver allocates the clk_lookup structure with
devm, but clkdev_drop() will free that structure when passed,
leading to a double free when this driver is removed. Clean it
all up and pave the way for the removal of clk_register_clkdevs().
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/mfd/intel_quark_i2c_gpio.c | 26 +++++++++-----------------
1 file changed, 9 insertions(+), 17 deletions(-)
diff --git a/drivers/mfd/intel_quark_i2c_gpio.c b/drivers/mfd/intel_quark_i2c_gpio.c
index 042137465300..bdc5e27222c0 100644
--- a/drivers/mfd/intel_quark_i2c_gpio.c
+++ b/drivers/mfd/intel_quark_i2c_gpio.c
@@ -52,8 +52,6 @@
/* The Quark I2C controller source clock */
#define INTEL_QUARK_I2C_CLK_HZ 33000000
-#define INTEL_QUARK_I2C_NCLK 1
-
struct intel_quark_mfd {
struct pci_dev *pdev;
struct clk *i2c_clk;
@@ -128,30 +126,24 @@ MODULE_DEVICE_TABLE(pci, intel_quark_mfd_ids);
static int intel_quark_register_i2c_clk(struct intel_quark_mfd *quark_mfd)
{
struct pci_dev *pdev = quark_mfd->pdev;
- struct clk_lookup *i2c_clk_lookup;
struct clk *i2c_clk;
- int ret;
-
- i2c_clk_lookup = devm_kcalloc(&pdev->dev, INTEL_QUARK_I2C_NCLK,
- sizeof(*i2c_clk_lookup), GFP_KERNEL);
- if (!i2c_clk_lookup)
- return -ENOMEM;
-
- i2c_clk_lookup[0].dev_id = INTEL_QUARK_I2C_CONTROLLER_CLK;
i2c_clk = clk_register_fixed_rate(&pdev->dev,
INTEL_QUARK_I2C_CONTROLLER_CLK, NULL,
CLK_IS_ROOT, INTEL_QUARK_I2C_CLK_HZ);
+ if (IS_ERR(i2c_clk))
+ return PTR_ERR(i2c_clk);
- quark_mfd->i2c_clk_lookup = i2c_clk_lookup;
quark_mfd->i2c_clk = i2c_clk;
+ quark_mfd->i2c_clk_lookup = clkdev_create(i2c_clk, NULL,
+ INTEL_QUARK_I2C_CONTROLLER_CLK);
- ret = clk_register_clkdevs(i2c_clk, i2c_clk_lookup,
- INTEL_QUARK_I2C_NCLK);
- if (ret)
- dev_err(&pdev->dev, "Fixed clk register failed: %d\n", ret);
+ if (!quark_mfd->i2c_clk_lookup) {
+ dev_err(&pdev->dev, "Fixed clk register failed\n");
+ return -ENOMEM;
+ }
- return ret;
+ return 0;
}
static void intel_quark_unregister_i2c_clk(struct pci_dev *pdev)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-02-09 1:45 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-09 1:45 [PATCH 00/14] clk_hw based clkdev/DT providers Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd [this message]
2016-02-09 1:45 ` [PATCH 01/14] mfd: intel_quark_i2c_gpio: Use clkdev_create() Stephen Boyd
2016-02-10 16:23 ` Lee Jones
2016-02-10 16:23 ` Lee Jones
2016-02-10 18:35 ` Stephen Boyd
2016-02-10 18:35 ` Stephen Boyd
2016-02-11 9:09 ` Lee Jones
2016-02-11 9:09 ` Lee Jones
2016-02-11 11:08 ` Lee Jones
2016-02-11 11:08 ` Lee Jones
2016-02-15 15:14 ` Andy Shevchenko
2016-02-15 15:14 ` Andy Shevchenko
2016-02-15 22:13 ` Michael Turquette
2016-02-15 22:13 ` Michael Turquette
2016-02-15 22:13 ` Michael Turquette
2016-02-09 1:45 ` [PATCH 02/14] clkdev: Remove clk_register_clkdevs() Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-15 15:16 ` Andy Shevchenko
2016-02-15 15:16 ` Andy Shevchenko
2016-02-15 22:12 ` Michael Turquette
2016-02-15 22:12 ` Michael Turquette
2016-02-15 22:12 ` Michael Turquette
2016-02-09 1:45 ` [PATCH 03/14] clk: Add {devm_}clk_hw_{register,unregister}() APIs Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-15 22:13 ` Michael Turquette
2016-02-15 22:13 ` Michael Turquette
2016-02-15 22:13 ` [PATCH 03/14] clk: Add {devm_}clk_hw_{register, unregister}() APIs Michael Turquette
2016-02-09 1:45 ` [PATCH 04/14] clk: Add clk_hw OF clk providers Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 3:31 ` kbuild test robot
2016-02-09 3:31 ` kbuild test robot
2016-02-09 1:45 ` [PATCH 05/14] clkdev: Add clk_hw based registration APIs Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 06/14] clk: divider: Add hw " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 07/14] clk: gate: " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 08/14] clk: mux: " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 09/14] clk: fixed-factor: " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 10/14] clk: fractional-divider: " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 11/14] clk: composite: " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 12/14] clk: gpio: " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 13/14] clk: fixed-rate: " Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 1:45 ` [PATCH 14/14] clk: qcom: Migrate to clk_hw based registration and OF APIs Stephen Boyd
2016-02-09 1:45 ` Stephen Boyd
2016-02-09 5:30 ` kbuild test robot
2016-02-09 5:30 ` kbuild test robot
2016-02-09 8:01 ` kbuild test robot
2016-02-09 8:01 ` kbuild test robot
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