Fix bzero buffer before read()
Signed-off-by: qiurui <qiurui@xxxxxxxxxx>
---
Documentation/usb/gadget_hid.rst | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/usb/gadget_hid.rst b/Documentation/usb/gadget_hid.rst
index e623416de4f1..c4ee81a6b48e 100644
--- a/Documentation/usb/gadget_hid.rst
+++ b/Documentation/usb/gadget_hid.rst
@@ -410,6 +410,7 @@ Sample code::
}
if (FD_ISSET(fd, &rfds)) {
+ bzero(buf, SIZE);
cmd_len = read(fd, buf, BUF_LEN - 1);
printf("recv report:");
for (i = 0; i < cmd_len; i++)
@@ -419,6 +420,7 @@ Sample code::
if (FD_ISSET(STDIN_FILENO, &rfds)) {
memset(report, 0x0, sizeof(report));
+ bzero(buf, SIZE);
cmd_len = read(STDIN_FILENO, buf, BUF_LEN - 1);
if (cmd_len == 0)
--
2.34.1
