memcpy param is wrong because of offset in bl_cmd, this may corrupt the
stack which may cause a crash.
Tested-by: Ferruh Yigit <f...@cypress.com> on TMA300-DVK
Signed-off-by: Ferruh Yigit <f...@cypress.com>
---
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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