Showing error 1124

User: Jiri Slaby
Error type: Double Lock
Error type description: Some lock is locked twice unintentionally in a sequence
File location: drivers/media/video/cpia.c
Line in file: 1649
Project: Linux Kernel
Project version: 2.6.28
Tools: Stanse (1.2)
Entered: 2012-04-29 14:49:11 UTC

Source: 

1619static inline void free_frames(struct cpia_frame frame[FRAME_NUM])
1620{
1621        int i;
1622
1623        for (i=0; i < FRAME_NUM; i++)
1624                frame[i].state = FRAME_UNUSED;
1625        return;
1626}
1627
1628/**********************************************************************
1629 *
1630 * General functions
1631 *
1632 **********************************************************************/
1633/* send an arbitrary command to the camera */
1634static int do_command(struct cam_data *cam, u16 command, u8 a, u8 b, u8 c, u8 d)
1635{
1636        int retval, datasize;
1637        u8 cmd[8], data[8];
1638
1639        switch(command) {
1640        case CPIA_COMMAND_GetCPIAVersion:
1641        case CPIA_COMMAND_GetPnPID:
1642        case CPIA_COMMAND_GetCameraStatus:
1643        case CPIA_COMMAND_GetVPVersion:
1644                datasize=8;
1645                break;
1646        case CPIA_COMMAND_GetColourParams:
1647        case CPIA_COMMAND_GetColourBalance:
1648        case CPIA_COMMAND_GetExposure:
1649                mutex_lock(&cam->param_lock);
1650                datasize=8;
1651                break;
1652        case CPIA_COMMAND_ReadMCPorts:
1653        case CPIA_COMMAND_ReadVCRegs:
1654                datasize = 4;
1655                break;
1656        default:
1657                datasize=0;
1658                break;
1659        }
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