• Arjan van de Ven's avatar
    resources: skip sanity check of busy resources · 3ac52669
    Arjan van de Ven authored
    Impact: reduce false positives in iomem_map_sanity_check()
    
    Some drivers (vesafb) only map/reserve a portion of a resource.
    If then some other driver comes in and maps the whole resource,
    the current code WARN_ON's. This is not the intent of the checks
    in iomem_map_sanity_check(); rather these checks want to
    warn when crossing *hardware* resources only.
    
    This patch skips BUSY resources as suggested by Linus.
    
    Note: having two drivers talk to the same hardware at the same
    time is obviously not optimal behavior, but that's a separate story.
    Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    3ac52669
resource.c 20.3 KB