HID: fix incorrect free in hiddev
If hiddev_open() fails, it wrongly frees the shared hiddev structure
kept in hiddev_table instead of the hiddev_list structure allocated
for the opened file descriptor. Existing references to this structure
will then accessed free memory.
This was introduced by 079034073 "HID: hiddev cleanup -- handle all
error conditions properly".
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 4940e4d..00ea1ed 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -306,7 +306,7 @@
return 0;
bail:
file->private_data = NULL;
- kfree(list->hiddev);
+ kfree(list);
return res;
}