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| author | Joerg Roedel <joerg.roedel@amd.com> | 2012-06-01 15:20:23 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2012-06-04 12:47:44 +0200 |
| commit | eee53537c476c947bf7faa1c916d2f5a0ae8ec93 (patch) | |
| tree | 0ca87099455da1cd0bf48affee27516a4bd1fa38 /Documentation | |
| parent | iommu/amd: Cache pdev pointer to root-bridge (diff) | |
| download | linux-eee53537c476c947bf7faa1c916d2f5a0ae8ec93.tar.xz linux-eee53537c476c947bf7faa1c916d2f5a0ae8ec93.zip | |
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>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions