diff options
Diffstat (limited to 'drivers/char/tpm')
-rw-r--r-- | drivers/char/tpm/tpm.c | 22 | ||||
-rw-r--r-- | drivers/char/tpm/tpm.h | 1 | ||||
-rw-r--r-- | drivers/char/tpm/tpm_tis.c | 14 |
3 files changed, 30 insertions, 7 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 4f18f84b498..02a495c2e06 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -1133,23 +1133,33 @@ int tpm_pm_resume(struct device *dev) } EXPORT_SYMBOL_GPL(tpm_pm_resume); +/* In case vendor provided release function, call it too.*/ + +void tpm_dev_vendor_release(struct tpm_chip *chip) +{ + if (chip->vendor.release) + chip->vendor.release(chip->dev); + + clear_bit(chip->dev_num, dev_mask); + kfree(chip->vendor.miscdev.name); +} +EXPORT_SYMBOL_GPL(tpm_dev_vendor_release); + + /* * Once all references to platform device are down to 0, * release all allocated structures. - * In case vendor provided release function, call it too. */ static void tpm_dev_release(struct device *dev) { struct tpm_chip *chip = dev_get_drvdata(dev); - if (chip->vendor.release) - chip->vendor.release(dev); - chip->release(dev); + tpm_dev_vendor_release(chip); - clear_bit(chip->dev_num, dev_mask); - kfree(chip->vendor.miscdev.name); + chip->release(dev); kfree(chip); } +EXPORT_SYMBOL_GPL(tpm_dev_release); /* * Called from tpm_<specific>.c probe function only for devices diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 2756cab9aee..8e30df4a438 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -132,6 +132,7 @@ extern struct tpm_chip* tpm_register_hardware(struct device *, const struct tpm_vendor_specific *); extern int tpm_open(struct inode *, struct file *); extern int tpm_release(struct inode *, struct file *); +extern void tpm_dev_vendor_release(struct tpm_chip *); extern ssize_t tpm_write(struct file *, const char __user *, size_t, loff_t *); extern ssize_t tpm_read(struct file *, char __user *, size_t, loff_t *); diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index ed1879c0dd8..717af7ad1bd 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -630,12 +630,23 @@ static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = { {"", 0} /* Terminator */ }; +static __devexit void tpm_tis_pnp_remove(struct pnp_dev *dev) +{ + struct tpm_chip *chip = pnp_get_drvdata(dev); + + tpm_dev_vendor_release(chip); + + kfree(chip); +} + + static struct pnp_driver tis_pnp_driver = { .name = "tpm_tis", .id_table = tpm_pnp_tbl, .probe = tpm_tis_pnp_init, .suspend = tpm_tis_pnp_suspend, .resume = tpm_tis_pnp_resume, + .remove = tpm_tis_pnp_remove, }; #define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2 @@ -683,6 +694,7 @@ static void __exit cleanup_tis(void) spin_lock(&tis_lock); list_for_each_entry_safe(i, j, &tis_chips, list) { chip = to_tpm_chip(i); + tpm_remove_hardware(chip->dev); iowrite32(~TPM_GLOBAL_INT_ENABLE & ioread32(chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor. @@ -694,9 +706,9 @@ static void __exit cleanup_tis(void) free_irq(chip->vendor.irq, chip); iounmap(i->iobase); list_del(&i->list); - tpm_remove_hardware(chip->dev); } spin_unlock(&tis_lock); + if (force) { platform_device_unregister(pdev); driver_unregister(&tis_drv); |