soundwire: stream: validate slave port properties

sdw_slave_port_config() validates that a port number is within the
generic valid range, but does not verify that the Slave exposes the
port for the requested stream direction. As a result, an in-range but
unsupported port, or a valid port used in the wrong direction, can be
accepted.

Use sdw_get_slave_dpn_prop() to perform the direction-specific lookup
and reject unsupported ports before storing the runtime configuration.

Signed-off-by: Eric Wu <kunjinkao.jp@gmail.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://patch.msgid.link/20260731123415.34070-1-kunjinkao.jp@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

0 files changed, 0 insertions, 0 deletions