diff options
author | Arjan van de Ven <arjan@linux.intel.com> | 2008-12-13 09:15:27 -0800 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-12-16 23:30:49 +0100 |
commit | 3ac52669c7a24b93663acfcab606d1065ed1accd (patch) | |
tree | d71baaa46f0d443176d2f161d10885d916a5c7e8 /mm/shmem.c | |
parent | 1bda71282ded6a2e09a2db7c8884542fb46bfd4f (diff) |
resources: skip sanity check of busy resources
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: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/shmem.c')
0 files changed, 0 insertions, 0 deletions