diff options
| author | Suman Anna <[email protected]> | 2014-10-22 17:22:34 -0500 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2014-10-23 14:33:48 +0200 |
| commit | c5cf5c5377fbd0a1ff2a09ad1f0c7e261aabc567 (patch) | |
| tree | ec305e6778337e821ca617e8b9286e86cec24d68 /lib/mpi/mpiutil.c | |
| parent | f24d9ad3fafd7c4ee47ec75947657d768873b6e4 (diff) | |
iommu/omap: Fix bus error on debugfs access of unattached IOMMU
Any debugfs access on an OMAP IOMMU that is not enabled (done during
attach) results in a bus error due to access of registers without
the clock or the reset enabled for the respective IOMMU. So, add a
check to make sure the IOMMU is enabled/attached by a client device.
This gracefully prints a "Operation not permitted" trace when the
corresponding IOMMU is not enabled.
Signed-off-by: Suman Anna <[email protected]>
Acked-by: Laurent Pinchart <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions