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charset="utf-8" From: Peng Fan 'struct scmi_imx_misc_ctrl_set_in' has a zero length array in the end, so sizeof will not count 'value[]', and txsize is smaller than actual size for tx,and SCMI firmware will take this protocol error. Fix this by enlarge the txsize with 'num * 4' to count in the size of data. Fixes: 61c9f03e22fc ("firmware: arm_scmi: Add initial support for i.MX MISC= protocol") Reviewed-by: Jacky Bai Tested-by: Shengjiu Wang Acked-by: Jason Liu Signed-off-by: Peng Fan --- V1: Patch is cherry-picked from downstream, so tags are kept. drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c b/drivers/= firmware/arm_scmi/vendors/imx/imx-sm-misc.c index 83b69fc4fba5..fe770d7fdde6 100644 --- a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c +++ b/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c @@ -254,7 +254,7 @@ static int scmi_imx_misc_ctrl_set(const struct scmi_pro= tocol_handle *ph, if (num > max_num) return -EINVAL; =20 - ret =3D ph->xops->xfer_get_init(ph, SCMI_IMX_MISC_CTRL_SET, sizeof(*in), + ret =3D ph->xops->xfer_get_init(ph, SCMI_IMX_MISC_CTRL_SET, sizeof(*in) += num * 4, 0, &t); if (ret) return ret; --=20 2.37.1