pds_core: add an error code check in pdsc_dl_info_get

check the value of 'ret' after call 'devlink_info_version_stored_put'.

Signed-off-by: Su Hui <suhui@nfschina.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20231019083351.1526484-1-suhui@nfschina.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>