[PATCH] docs: usb:gadget:hid: fix hid_gadget_test code in documentation of hid section

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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





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