From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Darren Hart <dvhart@infradead.org>,
Lee Jones <lee.jones@linaro.org>,
x86@kernel.org
Cc: Zha Qipeng <qipeng.zha@intel.com>,
Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com>,
"David E . Box" <david.e.box@linux.intel.com>,
Guenter Roeck <linux@roeck-us.net>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
platform-driver-x86@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 01/37] platform/x86: intel_mid_powerbtn: Take a copy of ddata
Date: Mon, 23 Dec 2019 17:16:40 +0300 [thread overview]
Message-ID: <20191223141716.13727-2-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20191223141716.13727-1-mika.westerberg@linux.intel.com>
The driver gets driver_data from memory that is marked as const (which
is probably put to read-only memory) and it then modifies it. This
likely causes some sort of fault to happen.
Fix this by taking a copy of the structure.
Fixes: c94a8ff14de3 ("platform/x86: intel_mid_powerbtn: make mid_pb_ddata const")
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
drivers/platform/x86/intel_mid_powerbtn.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/intel_mid_powerbtn.c b/drivers/platform/x86/intel_mid_powerbtn.c
index 292bace83f1e..6f436836fe50 100644
--- a/drivers/platform/x86/intel_mid_powerbtn.c
+++ b/drivers/platform/x86/intel_mid_powerbtn.c
@@ -146,9 +146,10 @@ static int mid_pb_probe(struct platform_device *pdev)
input_set_capability(input, EV_KEY, KEY_POWER);
- ddata = (struct mid_pb_ddata *)id->driver_data;
+ ddata = devm_kmemdup(&pdev->dev, (void *)id->driver_data,
+ sizeof(*ddata), GFP_KERNEL);
if (!ddata)
- return -ENODATA;
+ return -ENOMEM;
ddata->dev = &pdev->dev;
ddata->irq = irq;
--
2.24.0
next prev parent reply other threads:[~2019-12-23 14:17 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-23 14:16 [PATCH 00/37] platform/x86: Rework intel_scu_ipc and intel_pmc_ipc drivers Mika Westerberg
2019-12-23 14:16 ` Mika Westerberg [this message]
2019-12-23 14:16 ` [PATCH 02/37] platform/x86: intel_scu_ipcutil: Remove default y from Kconfig Mika Westerberg
2019-12-23 14:16 ` [PATCH 03/37] platform/x86: intel_scu_ipc: Add constants for register offsets Mika Westerberg
2019-12-23 14:16 ` [PATCH 04/37] platform/x86: intel_scu_ipc: Remove Lincroft support Mika Westerberg
2019-12-23 14:16 ` [PATCH 05/37] platform/x86: intel_scu_ipc: Drop intel_scu_ipc_i2c_cntrl() Mika Westerberg
2019-12-23 14:16 ` [PATCH 06/37] platform/x86: intel_scu_ipc: Fix interrupt support Mika Westerberg
2019-12-23 14:16 ` [PATCH 07/37] platform/x86: intel_scu_ipc: Sleeping is fine when polling Mika Westerberg
2019-12-23 14:16 ` [PATCH 08/37] platform/x86: intel_scu_ipc: Drop unused prototype intel_scu_ipc_fw_update() Mika Westerberg
2019-12-23 14:16 ` [PATCH 09/37] platform/x86: intel_scu_ipc: Drop unused macros Mika Westerberg
2019-12-23 14:16 ` [PATCH 10/37] platform/x86: intel_scu_ipc: Drop intel_scu_ipc_io[read|write][8|16]() Mika Westerberg
2019-12-23 14:16 ` [PATCH 11/37] platform/x86: intel_scu_ipc: Drop intel_scu_ipc_raw_command() Mika Westerberg
2019-12-23 14:16 ` [PATCH 12/37] platform/x86: intel_scu_ipc: Split out SCU IPC functionality from the SCU driver Mika Westerberg
2020-01-02 8:58 ` Lee Jones
2019-12-23 14:16 ` [PATCH 13/37] platform/x86: intel_scu_ipc: Reformat kernel-doc comments of exported functions Mika Westerberg
2019-12-23 14:16 ` [PATCH 14/37] platform/x86: intel_scu_ipc: Introduce new SCU IPC API Mika Westerberg
2019-12-23 14:16 ` [PATCH 15/37] platform/x86: intel_mid_powerbtn: Convert to use " Mika Westerberg
2019-12-23 14:16 ` [PATCH 16/37] watchdog: intel-mid_wdt: " Mika Westerberg
2019-12-23 15:46 ` Guenter Roeck
2019-12-27 9:59 ` Mika Westerberg
2019-12-23 14:16 ` [PATCH 17/37] platform/x86: intel_scu_ipcutil: " Mika Westerberg
2019-12-23 14:16 ` [PATCH 18/37] platform/x86: intel_pmc_ipc: Make intel_pmc_gcr_update() static Mika Westerberg
2019-12-23 14:16 ` [PATCH 19/37] platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_simple_command() static Mika Westerberg
2019-12-23 14:16 ` [PATCH 20/37] platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_raw_cmd() static Mika Westerberg
2019-12-23 14:17 ` [PATCH 21/37] platform/x86: intel_pmc_ipc: Drop intel_pmc_gcr_read() and intel_pmc_gcr_write() Mika Westerberg
2019-12-23 14:17 ` [PATCH 22/37] platform/x86: intel_pmc_ipc: Drop ipc_data_readb() Mika Westerberg
2019-12-23 14:17 ` [PATCH 23/37] platform/x86: intel_pmc_ipc: Get rid of unnecessary includes Mika Westerberg
2019-12-23 14:17 ` [PATCH 24/37] platform/x86: intel_scu_ipc: Add function to remove SCU IPC Mika Westerberg
2019-12-23 14:17 ` [PATCH 25/37] platform/x86: intel_pmc_ipc: Start using " Mika Westerberg
2019-12-23 14:17 ` [PATCH 26/37] mfd: intel_soc_pmic: Add SCU IPC member to struct intel_soc_pmic Mika Westerberg
2020-01-02 9:01 ` Lee Jones
2020-01-02 9:45 ` Mika Westerberg
2019-12-23 14:17 ` [PATCH 27/37] mfd: intel_soc_pmic_bxtwc: Convert to use new SCU IPC API Mika Westerberg
2020-01-02 9:16 ` Lee Jones
2019-12-23 14:17 ` [PATCH 28/37] mfd: intel_soc_pmic_mrfld: " Mika Westerberg
2020-01-02 9:17 ` Lee Jones
2019-12-23 14:17 ` [PATCH 29/37] platform/x86: intel_telemetry: " Mika Westerberg
2019-12-23 14:17 ` [PATCH 30/37] platform/x86: intel_pmc_ipc: Drop intel_pmc_ipc_command() Mika Westerberg
2019-12-23 14:17 ` [PATCH 31/37] x86/platform/intel-mid: Add empty stubs for intel_scu_devices_[create|destroy]() Mika Westerberg
2019-12-23 14:17 ` [PATCH 32/37] platform/x86: intel_pmc_ipc: Move PCI IDs to intel_scu_pcidrv.c Mika Westerberg
2019-12-23 14:17 ` [PATCH 33/37] platform/x86: intel_pmc_ipc: Move under MFD Mika Westerberg
2020-01-02 9:41 ` Lee Jones
2020-01-02 9:50 ` Mika Westerberg
2019-12-23 14:17 ` [PATCH 34/37] mfd: intel_pmc_bxt: Convert to use MFD APIs Mika Westerberg
2019-12-23 14:17 ` [PATCH 35/37] mfd: intel_pmc_bxt: Use octal permissions in sysfs attributes Mika Westerberg
2019-12-23 14:17 ` [PATCH 36/37] mfd: intel_pmc_bxt: Switch to use driver->dev_groups Mika Westerberg
2019-12-23 14:17 ` [PATCH 37/37] MAINTAINERS: Update entry for Intel Broxton PMC driver Mika Westerberg
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