diff options
Diffstat (limited to 'drivers/input/touchscreen')
| -rw-r--r-- | drivers/input/touchscreen/gt9xx/goodix_tool.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/gt9xx/goodix_tool.c b/drivers/input/touchscreen/gt9xx/goodix_tool.c index ada68b69b9e..430292d3e24 100644 --- a/drivers/input/touchscreen/gt9xx/goodix_tool.c +++ b/drivers/input/touchscreen/gt9xx/goodix_tool.c @@ -1,7 +1,7 @@ /* drivers/input/touchscreen/goodix_tool.c * * 2010 - 2012 Goodix Technology. - * Copyright (c) 2013, The Linux Foundation. All rights reserved. + * Copyright (c) 2013-2017, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -311,6 +311,7 @@ static s32 goodix_tool_write(struct file *filp, const char __user *userbuf, size_t count, loff_t *ppos) { s32 ret = 0; + u8 *dataptr = NULL; mutex_lock(&lock); ret = copy_from_user(&cmd_head, userbuf, CMD_HEAD_LENGTH); @@ -469,6 +470,11 @@ static s32 goodix_tool_write(struct file *filp, const char __user *userbuf, ret = CMD_HEAD_LENGTH; exit: + dataptr = cmd_head.data; + memset(&cmd_head, 0, sizeof(cmd_head)); + cmd_head.wr = 0xFF; + cmd_head.data = dataptr; + mutex_unlock(&lock); return ret; } |