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path: root/drivers/misc/pti.c
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Diffstat (limited to 'drivers/misc/pti.c')
-rw-r--r--drivers/misc/pti.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c
index bb6f9255c17..374dfcfccd0 100644
--- a/drivers/misc/pti.c
+++ b/drivers/misc/pti.c
@@ -317,7 +317,8 @@ EXPORT_SYMBOL_GPL(pti_request_masterchannel);
* a master, channel ID address
* used to write to PTI HW.
*
- * @mc: master, channel apeture ID address to be released.
+ * @mc: master, channel apeture ID address to be released. This
+ * will de-allocate the structure via kfree().
*/
void pti_release_masterchannel(struct pti_masterchannel *mc)
{
@@ -475,8 +476,10 @@ static int pti_tty_install(struct tty_driver *driver, struct tty_struct *tty)
else
pti_tty_data->mc = pti_request_masterchannel(2);
- if (pti_tty_data->mc == NULL)
+ if (pti_tty_data->mc == NULL) {
+ kfree(pti_tty_data);
return -ENXIO;
+ }
tty->driver_data = pti_tty_data;
}
@@ -495,7 +498,7 @@ static void pti_tty_cleanup(struct tty_struct *tty)
if (pti_tty_data == NULL)
return;
pti_release_masterchannel(pti_tty_data->mc);
- kfree(tty->driver_data);
+ kfree(pti_tty_data);
tty->driver_data = NULL;
}
@@ -581,7 +584,7 @@ static int pti_char_open(struct inode *inode, struct file *filp)
static int pti_char_release(struct inode *inode, struct file *filp)
{
pti_release_masterchannel(filp->private_data);
- kfree(filp->private_data);
+ filp->private_data = NULL;
return 0;
}