[PATCH 1/2] Input: cyttsp - fix memcpy size param

memcpy param is wrong because of offset in bl_cmd, this may corrupt the
stack which may cause a crash.

Tested-by: Ferruh Yigit <redacted> on TMA300-DVK
Signed-off-by: Ferruh Yigit <redacted>
---
 drivers/input/touchscreen/cyttsp_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
index 8e60437..97ba891 100644
--- a/drivers/input/touchscreen/cyttsp_core.c
+++ b/drivers/input/touchscreen/cyttsp_core.c

@@ -133,7 +133,7 @@ static int cyttsp_exit_bl_mode(struct cyttsp *ts)
        memcpy(bl_cmd, bl_command, sizeof(bl_command));
        if (ts->pdata->bl_keys)
                memcpy(&bl_cmd[sizeof(bl_command) - CY_NUM_BL_KEYS],
-                       ts->pdata->bl_keys, sizeof(bl_command));
+                       ts->pdata->bl_keys, CY_NUM_BL_KEYS);

        error = ttsp_write_block_data(ts, CY_REG_BASE,
                                      sizeof(bl_cmd), bl_cmd);
--

1.7.9.5

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