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staging: nvec: cleanup childs on remove 

Disable device functions and unregister notifier if available. The
serio device must not be "kzallocated". Otherwise serio_unregister_port
will fail because the device is already freed.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Marc Dietrich 2013-04-29 23:14:52 +02:00 committed by Greg Kroah-Hartman
parent 111c158787
commit c2b62f60f6
4 changed files with 19 additions and 3 deletions
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5
drivers/staging/nvec/nvec.c
View File

@ -829,7 +829,7 @@ static int tegra_nvec_probe(struct platform_device *pdev)
return -ENODEV;
}
i2c_clk = clk_get(&pdev->dev, "div-clk");
i2c_clk = devm_clk_get(&pdev->dev, "div-clk");
if (IS_ERR(i2c_clk)) {
dev_err(nvec->dev, "failed to get controller clock\n");
return -ENODEV;
@ -916,8 +916,11 @@ static int tegra_nvec_remove(struct platform_device *pdev)
nvec_toggle_global_events(nvec, false);
mfd_remove_devices(nvec->dev);
nvec_unregister_notifier(nvec, &nvec->nvec_status_notifier);
cancel_work_sync(&nvec->rx_work);
cancel_work_sync(&nvec->tx_work);
/* FIXME: needs check wether nvec is responsible for power off */
pm_power_off = NULL;
return 0;
}

9
drivers/staging/nvec/nvec_kbd.c
View File

@ -169,8 +169,15 @@ fail:
static int nvec_kbd_remove(struct platform_device *pdev)
{
struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
char disable_kbd[] = { NVEC_KBD, DISABLE_KBD },
uncnfg_wake_key_reporting[] = { NVEC_KBD, CNFG_WAKE_KEY_REPORTING,
false };
nvec_write_async(nvec, uncnfg_wake_key_reporting, 3);
nvec_write_async(nvec, disable_kbd, 2);
nvec_unregister_notifier(nvec, &keys_dev.notifier);
input_unregister_device(keys_dev.input);
input_free_device(keys_dev.input);
return 0;
}

1
drivers/staging/nvec/nvec_power.c
View File

@ -414,6 +414,7 @@ static int nvec_power_remove(struct platform_device *pdev)
struct nvec_power *power = platform_get_drvdata(pdev);
cancel_delayed_work_sync(&power->poller);
nvec_unregister_notifier(power->nvec, &power->notifier);
switch (pdev->id) {
case AC:
power_supply_unregister(&nvec_psy);

7
drivers/staging/nvec/nvec_ps2.c
View File

@ -106,7 +106,7 @@ static int nvec_mouse_probe(struct platform_device *pdev)
struct serio *ser_dev;
char mouse_reset[] = { NVEC_PS2, SEND_COMMAND, PSMOUSE_RST, 3 };
ser_dev = devm_kzalloc(&pdev->dev, sizeof(struct serio), GFP_KERNEL);
ser_dev = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (ser_dev == NULL)
return -ENOMEM;
@ -133,6 +133,11 @@ static int nvec_mouse_probe(struct platform_device *pdev)
static int nvec_mouse_remove(struct platform_device *pdev)
{
struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
ps2_sendcommand(ps2_dev.ser_dev, DISABLE_MOUSE);
ps2_stopstreaming(ps2_dev.ser_dev);
nvec_unregister_notifier(nvec, &ps2_dev.notifier);
serio_unregister_port(ps2_dev.ser_dev);
return 0;