diff options
author | Eric Anholt <eric@anholt.net> | 2008-06-13 10:47:33 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2008-06-13 10:47:33 -0700 |
commit | df4ef348c8a48cead807a42fcd315f7e422aa156 (patch) | |
tree | c2ce73fd4de9a4a3ab02919c10ace0dfaf416898 /linux-core/via_irq.c | |
parent | e558e1d7dacafa1e7f9681f1eaec072d663287de (diff) |
Fix i915_wait_irq in the presence of interrupt masking.
In the short-circuit code for the breadcrumb already being new enough, we
need to update the sarea_priv copy of the breadcrumb just as if we had
waited. Otherwise userland error checking will notice that we returned
too early based on its wrong information, and call wait_irq again (leading
to spinning until someone else comes along and updates the sarea_priv).
This bug was hidden when we had interrupt masking disabled, such as in
master, since the interrupt handler would update sarea_priv.
Diffstat (limited to 'linux-core/via_irq.c')
0 files changed, 0 insertions, 0 deletions