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path: root/drivers/platform/x86/ideapad-laptop.c
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Diffstat (limited to 'drivers/platform/x86/ideapad-laptop.c')
-rw-r--r--drivers/platform/x86/ideapad-laptop.c31
1 files changed, 21 insertions, 10 deletions
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 6dd060a0bb65..b4c495a62eec 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -36,6 +36,8 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/i8042.h>
+#include <linux/dmi.h>
+#include <linux/device.h>
#define IDEAPAD_RFKILL_DEV_NUM (3)
@@ -819,6 +821,19 @@ static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
}
}
+/* Blacklist for devices where the ideapad rfkill interface does not work */
+static struct dmi_system_id rfkill_blacklist[] = {
+ /* The Lenovo Yoga 2 11 always reports everything as blocked */
+ {
+ .ident = "Lenovo Yoga 2 11",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 2 11"),
+ },
+ },
+ {}
+};
+
static int ideapad_acpi_add(struct platform_device *pdev)
{
int ret, i;
@@ -833,7 +848,7 @@ static int ideapad_acpi_add(struct platform_device *pdev)
if (read_method_int(adev->handle, "_CFG", &cfg))
return -ENODEV;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
@@ -844,7 +859,7 @@ static int ideapad_acpi_add(struct platform_device *pdev)
ret = ideapad_sysfs_init(priv);
if (ret)
- goto sysfs_failed;
+ return ret;
ret = ideapad_debugfs_init(priv);
if (ret)
@@ -854,11 +869,10 @@ static int ideapad_acpi_add(struct platform_device *pdev)
if (ret)
goto input_failed;
- for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) {
- if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
- ideapad_register_rfkill(priv, i);
- else
- priv->rfk[i] = NULL;
+ if (!dmi_check_system(rfkill_blacklist)) {
+ for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
+ if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
+ ideapad_register_rfkill(priv, i);
}
ideapad_sync_rfk_state(priv);
ideapad_sync_touchpad_state(priv);
@@ -884,8 +898,6 @@ input_failed:
ideapad_debugfs_exit(priv);
debugfs_failed:
ideapad_sysfs_exit(priv);
-sysfs_failed:
- kfree(priv);
return ret;
}
@@ -903,7 +915,6 @@ static int ideapad_acpi_remove(struct platform_device *pdev)
ideapad_debugfs_exit(priv);
ideapad_sysfs_exit(priv);
dev_set_drvdata(&pdev->dev, NULL);
- kfree(priv);
return 0;
}