#9958 NORM 1.5-sof: camera driver ooops

[Zarro Boogs per Child]

#9958: camera driver ooops
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           Reporter:  rsmith    |       Owner:  corbet                           
               Type:  defect    |      Status:  new                              
           Priority:  normal    |   Milestone:  1.5-software-later               
          Component:  kernel    |     Version:  Development build as of this date
         Resolution:            |    Keywords:  os104                            
        Next_action:  diagnose  |    Verified:  0                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
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Comment(by corbet):

 So...I'm still unable to reproduce this problem.  Some staring at the
 code, however, has led me to find a bug which certainly *could* be the
 cause.  Essentially, streaming buffers were being remembered by the camera
 from one streamon/streamoff run to the next, even though the videobuf
 layer had long since forgotten about them.  Under this scenario, the first
 run will never oops, but there is a small chance of crashes in subsequent
 runs.  This matches the posted oops, where the camera had been run once
 successfully.

 I've pushed a fix into my tree, would love to hear if it fixes the problem
 for others.  It's a necessary fix regardless.

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Ticket URL: <http://dev.laptop.org/ticket/9958#comment:7>
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