aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/char/tpm
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/tpm')
-rw-r--r--drivers/char/tpm/tpm.c22
-rw-r--r--drivers/char/tpm/tpm.h1
-rw-r--r--drivers/char/tpm/tpm_tis.c14
3 files changed, 30 insertions, 7 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 4f18f84b498a..02a495c2e068 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1133,23 +1133,33 @@ int tpm_pm_resume(struct device *dev)
1133} 1133}
1134EXPORT_SYMBOL_GPL(tpm_pm_resume); 1134EXPORT_SYMBOL_GPL(tpm_pm_resume);
1135 1135
1136/* In case vendor provided release function, call it too.*/
1137
1138void tpm_dev_vendor_release(struct tpm_chip *chip)
1139{
1140 if (chip->vendor.release)
1141 chip->vendor.release(chip->dev);
1142
1143 clear_bit(chip->dev_num, dev_mask);
1144 kfree(chip->vendor.miscdev.name);
1145}
1146EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
1147
1148
1136/* 1149/*
1137 * Once all references to platform device are down to 0, 1150 * Once all references to platform device are down to 0,
1138 * release all allocated structures. 1151 * release all allocated structures.
1139 * In case vendor provided release function, call it too.
1140 */ 1152 */
1141static void tpm_dev_release(struct device *dev) 1153static void tpm_dev_release(struct device *dev)
1142{ 1154{
1143 struct tpm_chip *chip = dev_get_drvdata(dev); 1155 struct tpm_chip *chip = dev_get_drvdata(dev);
1144 1156
1145 if (chip->vendor.release) 1157 tpm_dev_vendor_release(chip);
1146 chip->vendor.release(dev);
1147 chip->release(dev);
1148 1158
1149 clear_bit(chip->dev_num, dev_mask); 1159 chip->release(dev);
1150 kfree(chip->vendor.miscdev.name);
1151 kfree(chip); 1160 kfree(chip);
1152} 1161}
1162EXPORT_SYMBOL_GPL(tpm_dev_release);
1153 1163
1154/* 1164/*
1155 * Called from tpm_<specific>.c probe function only for devices 1165 * 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 2756cab9aee3..8e30df4a4388 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 *,
132 const struct tpm_vendor_specific *); 132 const struct tpm_vendor_specific *);
133extern int tpm_open(struct inode *, struct file *); 133extern int tpm_open(struct inode *, struct file *);
134extern int tpm_release(struct inode *, struct file *); 134extern int tpm_release(struct inode *, struct file *);
135extern void tpm_dev_vendor_release(struct tpm_chip *);
135extern ssize_t tpm_write(struct file *, const char __user *, size_t, 136extern ssize_t tpm_write(struct file *, const char __user *, size_t,
136 loff_t *); 137 loff_t *);
137extern ssize_t tpm_read(struct file *, char __user *, size_t, loff_t *); 138extern 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 ed1879c0dd8d..717af7ad1bdf 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 = {
630 {"", 0} /* Terminator */ 630 {"", 0} /* Terminator */
631}; 631};
632 632
633static __devexit void tpm_tis_pnp_remove(struct pnp_dev *dev)
634{
635 struct tpm_chip *chip = pnp_get_drvdata(dev);
636
637 tpm_dev_vendor_release(chip);
638
639 kfree(chip);
640}
641
642
633static struct pnp_driver tis_pnp_driver = { 643static struct pnp_driver tis_pnp_driver = {
634 .name = "tpm_tis", 644 .name = "tpm_tis",
635 .id_table = tpm_pnp_tbl, 645 .id_table = tpm_pnp_tbl,
636 .probe = tpm_tis_pnp_init, 646 .probe = tpm_tis_pnp_init,
637 .suspend = tpm_tis_pnp_suspend, 647 .suspend = tpm_tis_pnp_suspend,
638 .resume = tpm_tis_pnp_resume, 648 .resume = tpm_tis_pnp_resume,
649 .remove = tpm_tis_pnp_remove,
639}; 650};
640 651
641#define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2 652#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)
683 spin_lock(&tis_lock); 694 spin_lock(&tis_lock);
684 list_for_each_entry_safe(i, j, &tis_chips, list) { 695 list_for_each_entry_safe(i, j, &tis_chips, list) {
685 chip = to_tpm_chip(i); 696 chip = to_tpm_chip(i);
697 tpm_remove_hardware(chip->dev);
686 iowrite32(~TPM_GLOBAL_INT_ENABLE & 698 iowrite32(~TPM_GLOBAL_INT_ENABLE &
687 ioread32(chip->vendor.iobase + 699 ioread32(chip->vendor.iobase +
688 TPM_INT_ENABLE(chip->vendor. 700 TPM_INT_ENABLE(chip->vendor.
@@ -694,9 +706,9 @@ static void __exit cleanup_tis(void)
694 free_irq(chip->vendor.irq, chip); 706 free_irq(chip->vendor.irq, chip);
695 iounmap(i->iobase); 707 iounmap(i->iobase);
696 list_del(&i->list); 708 list_del(&i->list);
697 tpm_remove_hardware(chip->dev);
698 } 709 }
699 spin_unlock(&tis_lock); 710 spin_unlock(&tis_lock);
711
700 if (force) { 712 if (force) {
701 platform_device_unregister(pdev); 713 platform_device_unregister(pdev);
702 driver_unregister(&tis_drv); 714 driver_unregister(&tis_drv);