Input: cyttsp5 - fix array length

commit 529de2f1ca3f0898c0d905b7d355a43dce1de7dc upstream.

The cmd array should be initialized with the proper command size and not
with the actual command value that is sent to the touchscreen.

Signed-off-by: Maximilian Weigand <mweigand@mweigand.net>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Link: https://lore.kernel.org/r/20230501113010.891786-2-mweigand@mweigand.net
Fixes: 5b0c03e24a06 ("Input: Add driver for Cypress Generation 5 touchscreen")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/input/touchscreen/cyttsp5.c b/drivers/input/touchscreen/cyttsp5.c
index 30102cb80fac823ae47a27cc64a540a78211e656..3c9d07218f48dfc52bb59fe0be008d8e4915f586 100644 (file)
--- a/drivers/input/touchscreen/cyttsp5.c
+++ b/drivers/input/touchscreen/cyttsp5.c
@@ -560,7 +560,7 @@ static int cyttsp5_hid_output_get_sysinfo(struct cyttsp5 *ts)
 static int cyttsp5_hid_output_bl_launch_app(struct cyttsp5 *ts)
 {
        int rc;
-       u8 cmd[HID_OUTPUT_BL_LAUNCH_APP];
+       u8 cmd[HID_OUTPUT_BL_LAUNCH_APP_SIZE];
        u16 crc;
 
        put_unaligned_le16(HID_OUTPUT_BL_LAUNCH_APP_SIZE, cmd);