media: ipu-bridge: Do not use on stack memory for software_node.name field

Commit 567f97bd381f ("media: ipu3-cio2: support multiple sensors and VCMs
with same HID") introduced an on stack vcm_name and then uses this for
the name field of the software_node struct used for the vcm.

But the software_node struct is much longer lived then the current
stack-frame, so this is no good.

Instead extend the ipu_node_names struct with an extra field to store
the vcm software_node name and use that.

Note this also changes the length of the allocated buffer from
ACPI_ID_LEN + 4 to 16. the name is filled with "<ipu_vcm_types[x]>-%u"
where ipu_vcm_types[x] is not an ACPI_ID. The maximum length of
the strings in the ipu_vcm_types[] array is 11 + 5 bytes for "-255\0"
means 16 bytes are needed in the worst case scenario.

Fixes: 567f97bd381f ("media: ipu3-cio2: support multiple sensors and VCMs with same HID")
Cc: Bingbu Cao <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: Daniel Scally <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

0 files changed, 0 insertions, 0 deletions