diff options
| -rw-r--r-- | drivers/misc/mediatek/thermal/mtk_cooler_shutdown.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/mediatek/thermal/mtk_cooler_shutdown.c b/drivers/misc/mediatek/thermal/mtk_cooler_shutdown.c index 7f5beb898..dc5fe0a0e 100644 --- a/drivers/misc/mediatek/thermal/mtk_cooler_shutdown.c +++ b/drivers/misc/mediatek/thermal/mtk_cooler_shutdown.c @@ -64,6 +64,9 @@ static ssize_t _mtk_cl_sd_rst_write(struct file *filp, const char __user *buf, s int ret = 0; char tmp[MAX_LEN] = { 0 }; + + len = min(len,MAX_LEN-1); + /* write data to the buffer */ if (copy_from_user(tmp, buf, len)) { return -EFAULT; |