soundwire: stream: validate slave port properties

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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>

...

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Eric Wu 2026-07-31 20:34:15 +08:00 • committed by Vinod Koul

parent b3d2703946

commit cd4a294c4b

1 changed files with 13 additions and 4 deletions

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drivers/soundwire/stream.c

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