HID: hid-asus: add const to read-only outgoing usb buffer

[ Upstream commit 06ae5afce8cc1f7621cc5c7751e449ce20d68af7 ]

In the function asus_kbd_set_report the parameter buf is read-only
as it gets copied in a memory portion suitable for USB transfer,
but the parameter is not marked as const: add the missing const and mark
const immutable buffers passed to that function.

Signed-off-by: Denis Benato <benato.denis96@gmail.com>
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 52f65d0f44cae357184f7aa0b374f394bf6cfc5e..3094e75617dd3cda1611a4e21cc8fc82d78bc356 100644 (file)
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -232,7 +232,7 @@ static int asus_raw_event(struct hid_device *hdev,
        return 0;
 }
 
-static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size)
+static int asus_kbd_set_report(struct hid_device *hdev, const u8 *buf, size_t buf_size)
 {
        unsigned char *dmabuf;
        int ret;
@@ -251,7 +251,7 @@ static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size
 
 static int asus_kbd_init(struct hid_device *hdev)
 {
-       u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54,
+       const u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54,
                     0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 };
        int ret;
 
@@ -265,7 +265,7 @@ static int asus_kbd_init(struct hid_device *hdev)
 static int asus_kbd_get_functions(struct hid_device *hdev,
                                  unsigned char *kbd_func)
 {
-       u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 };
+       const u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 };
        u8 *readbuf;
        int ret;