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Input: cyttsp - fix memcpy size param

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

Tested-by: Ferruh Yigit <fery@cypress.com> on TMA300-DVK
Signed-off-by: Ferruh Yigit <fery@cypress.com>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Ferruh Yigit 2013-05-23 09:56:55 -07:00 committed by Dmitry Torokhov
parent 3bd1f7e2db
commit d2983cdb48
1 changed files with 1 additions and 1 deletions
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2
drivers/input/touchscreen/cyttsp_core.c
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@ -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);