| commit | eee53537c476c947bf7faa1c916d2f5a0ae8ec93 | [log] [tgz] |
|---|---|---|
| author | Joerg Roedel <joerg.roedel@amd.com> | Fri Jun 01 15:20:23 2012 +0200 |
| committer | Joerg Roedel <joerg.roedel@amd.com> | Mon Jun 04 12:47:44 2012 +0200 |
| tree | 0ca87099455da1cd0bf48affee27516a4bd1fa38 | |
| parent | c1bf94ec1e12d76838ad485158aecf208ebd8fb9 [diff] |
iommu/amd: Fix deadlock in ppr-handling error path In the error path of the ppr_notifer it can happen that the iommu->lock is taken recursivly. This patch fixes the problem by releasing the iommu->lock before any notifier is invoked. This also requires to move the erratum workaround for the ppr-log (interrupt may be faster than data in the log) one function up. Cc: stable@vger.kernel.org # v3.3, v3.4 Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>