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| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2014-04-01 23:50:41 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-16 12:24:16 -0700 |
| commit | 34ec43661fe8f1977dd0f05353302ae2ed10aabb (patch) | |
| tree | a43273b676eb83e3bfcdc66ed6958caaa5de0469 /drivers/misc/mei/interrupt.c | |
| parent | 5e6533a6f52f1a8283b2f818f5828be99a417dd6 (diff) | |
| download | linux-34ec43661fe8f1977dd0f05353302ae2ed10aabb.tar.gz | |
mei: ignore client writing state during cb completion
Ignore client writing state during cb completion to fix a memory leak. When moving cbs to the completion list we should not look at writing_state as this state can be already overwritten by next write, the fact that a cb is on the write waiting list means that it was already written to the HW and we can safely complete it. Same pays for wait in poll handler, we do not have to check the state wake is done after completion list processing. Cc: stable@vger.kernel.org Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/interrupt.c')
| -rw-r--r-- | drivers/misc/mei/interrupt.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 29b5af8efb71..4e3cba6da3f5 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -455,8 +455,7 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list) cl->status = 0; list_del(&cb->list); - if (MEI_WRITING == cl->writing_state && - cb->fop_type == MEI_FOP_WRITE && + if (cb->fop_type == MEI_FOP_WRITE && cl != &dev->iamthif_cl) { cl_dbg(dev, cl, "MEI WRITE COMPLETE\n"); cl->writing_state = MEI_WRITE_COMPLETE; |