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path: root/drivers/char/tpm
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Diffstat (limited to 'drivers/char/tpm')
-rw-r--r--drivers/char/tpm/tpm.c5
-rw-r--r--drivers/char/tpm/tpm_tis.c1
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index a5d8bcb4000..e1fc193d939 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -26,6 +26,7 @@
#include <linux/poll.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
#include "tpm.h"
@@ -897,6 +898,7 @@ int tpm_open(struct inode *inode, struct file *file)
int rc = 0, minor = iminor(inode);
struct tpm_chip *chip = NULL, *pos;
+ lock_kernel();
spin_lock(&driver_lock);
list_for_each_entry(pos, &tpm_chip_list, list) {
@@ -926,16 +928,19 @@ int tpm_open(struct inode *inode, struct file *file)
if (chip->data_buffer == NULL) {
chip->num_opens--;
put_device(chip->dev);
+ unlock_kernel();
return -ENOMEM;
}
atomic_set(&chip->data_pending, 0);
file->private_data = chip;
+ unlock_kernel();
return 0;
err_out:
spin_unlock(&driver_lock);
+ unlock_kernel();
return rc;
}
EXPORT_SYMBOL_GPL(tpm_open);
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 13a4bdd4e4d..c7a977bc03e 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -623,6 +623,7 @@ static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = {
{"IFX0102", 0}, /* Infineon */
{"BCM0101", 0}, /* Broadcom */
{"NSC1200", 0}, /* National */
+ {"ICO0102", 0}, /* Intel */
/* Add new here */
{"", 0}, /* User Specified */
{"", 0} /* Terminator */