may I shall post the the errors that occur in terminal
~# [ 298.393252] usb 1-1.4: USB disconnect, device number 5
[ 305.763523] usb 1-1.4: new high speed USB device number 6 using s5p-ehci
[ 305.896624] uvcvideo: Found UVC 1.00 device USB 2.0 PC Camera (058f:3880)
[ 305.900366] input: USB 2.0 PC Camera as /devices/platform/s5p-ehci/usb1/1-1/1-1.4/1-1.4:1.0/input/input6
[ 306.015794] Unable to handle kernel NULL pointer dereference at virtual address 0000001c
[ 306.015869] pgd = db7b8000
[ 306.015894] [0000001c] *pgd=3be9a831, *pte=00000000, *ppte=00000000
[ 306.015955] Internal error: Oops: 17 [#1] PREEMPT
[ 306.015997] Modules linked in: snd_soc_mini210_wm8960 rtl8192cu snd_soc_wm8960
[ 306.022396] CPU: 0 Not tainted (3.0.8-FriendlyARM #1)
[ 306.027781] PC is at fimc_queryctrl+0x64/0x100
[ 306.032193] LR is at __mutex_lock_slowpath+0x1e8/0x2b4
[ 306.037301] pc : [<c04b4ecc>] lr : [<c0683cc8>] psr: 40000013
[ 306.037306] sp : db46bc48 ip : 22222222 fp : 00000000
[ 306.048738] r10: c0445624 r9 : db4dfe00 r8 : dbc39600
[ 306.053938] r7 : c06d1e1c r6 : db509080 r5 : db46be50 r4 : db509000
[ 306.060437] r3 : 00000000 r2 : db46bc40 r1 : 22222222 r0 : db46bc18
[ 306.066937] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 306.074042] Control: 10c5387d Table: 3b7b8019 DAC: 00000015