Showing error 1209

User: Jiri Slaby
Error type: Double Unlock
Error type description: Some lock is unlocked twice unintentionally in a sequence
File location: drivers/media/video/cpia.c
Line in file: 1728
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2012-04-30 10:52:00 UTC

Source: 

1698                        cam->params.status.vpStatus = data[6];
1699                        cam->params.status.errorCode = data[7];
1700                        break;
1701                case CPIA_COMMAND_GetVPVersion:
1702                        cam->params.vpVersion.vpVersion = data[0];
1703                        cam->params.vpVersion.vpRevision = data[1];
1704                        cam->params.vpVersion.cameraHeadID =
1705                                data[2]+(((u16)data[3])<<8);
1706                        break;
1707                case CPIA_COMMAND_GetColourParams:
1708                        cam->params.colourParams.brightness = data[0];
1709                        cam->params.colourParams.contrast = data[1];
1710                        cam->params.colourParams.saturation = data[2];
1711                        mutex_unlock(&cam->param_lock);
1712                        break;
1713                case CPIA_COMMAND_GetColourBalance:
1714                        cam->params.colourBalance.redGain = data[0];
1715                        cam->params.colourBalance.greenGain = data[1];
1716                        cam->params.colourBalance.blueGain = data[2];
1717                        mutex_unlock(&cam->param_lock);
1718                        break;
1719                case CPIA_COMMAND_GetExposure:
1720                        cam->params.exposure.gain = data[0];
1721                        cam->params.exposure.fineExp = data[1];
1722                        cam->params.exposure.coarseExpLo = data[2];
1723                        cam->params.exposure.coarseExpHi = data[3];
1724                        cam->params.exposure.redComp = data[4];
1725                        cam->params.exposure.green1Comp = data[5];
1726                        cam->params.exposure.green2Comp = data[6];
1727                        cam->params.exposure.blueComp = data[7];
1728                        mutex_unlock(&cam->param_lock);
1729                        break;
1730
1731                case CPIA_COMMAND_ReadMCPorts:
1732                        if (!cam->params.qx3.qx3_detected)
1733                                break;
1734                        /* test button press */
1735                        cam->params.qx3.button = ((data[1] & 0x02) == 0);
1736                        if (cam->params.qx3.button) {
1737                                /* button pressed - unlock the latch */
1738                                do_command(cam,CPIA_COMMAND_WriteMCPort,3,0xDF,0xDF,0);
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