Re: [PATCH 27/34] media: mx2_camera: use managed functions to clean up code

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Hi,

On 17 September 2012 11:11, Guennadi Liakhovetski <g.liakhovetski@xxxxxx> wrote:
> On Mon, 17 Sep 2012, Shawn Guo wrote:
>
>> Use managed functions to clean up the error handling code and function
>> mx2_camera_remove().  Along with the change, a few variables get removed
>> from struct mx2_camera_dev.
>>
>> Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
>> Cc: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
>> Cc: linux-media@xxxxxxxxxxxxxxx
>
> (in case you want to push it via arm-soc)
>
> Acked-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>

This patch breaks the driver:

soc-camera-pdrv soc-camera-pdrv.0: Probing soc-camera-pdrv.0
Unable to handle kernel paging request at virtual address 656d6162
pgd = c0004000
[656d6162] *pgd=00000000
Internal error: Oops: 80000005 [#1] PREEMPT ARM
Modules linked in:
CPU: 0    Not tainted  (3.6.0-rc5-01222-g3413fb1 #12)
PC is at 0x656d6162
LR is at soc_camera_host_register+0x230/0x81c
pc : [<656d6162>]    lr : [<c01ff6a0>]    psr: 40000033
sp : c3025e48  ip : 00000000  fp : 00000000
r10: c03f236c  r9 : 00000000  r8 : 00000001
r7 : 00000000  r6 : c317d414  r5 : c30431a0  r4 : c317d600
r3 : 656d6163  r2 : c3025e18  r1 : 000c0000  r0 : c317d600
Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA Thumb  Segment kernel
Control: 0005317f  Table: a0004000  DAC: 00000017
Process swapper (pid: 1, stack limit = 0xc3024270)
Stack: (0xc3025e48 to 0xc3026000)
5e40:                   c3006460 00000000 c3192960 00000043 c317d638 c005d624
5e60: 00000043 c317d410 c317d478 c317d414 c02012f0 c317d410 00000000 00000043
5e80: c31a9800 c31a9820 00000000 c022ca74 c300ab20 00000000 c306e4a8 c306e4a0
5ea0: c30000c0 40000013 000080d0 c317d410 c317d410 c306e4a8 c306e4a0 00000001
5ec0: 00000000 c03f236c 00000000 c02c8d50 00000000 c03535ee c317d410 c02c8a44
5ee0: c306e4a8 c306e4a8 c03fc478 c03fc478 00000050 c03e0774 c03dc684 c0189d30
5f00: c306e4a8 c0188c3c c306e4a8 c306e4dc c03fc478 00000000 00000050 c0188db8
5f20: c03fc478 c3025f30 c0188d58 c0187610 c300760c c3079ad0 c03fc478 c03fc478
5f40: c318e680 c03f6458 00000000 c0187d24 c03535ee c03535ee c3025f58 c03fc478
5f60: 00000001 c04049c0 00000000 c01892c8 c03fc464 00000001 c04049c0 00000000
5f80: 00000050 c018a05c c03dc67c c03d4e84 c04049c0 c00087c8 00000006 00000006
5fa0: c03eeca0 c03dc67c 00000007 c03dc67c 00000007 c04049c0 c03c41a4 00000050
5fc0: c03e0774 c03c42f4 00000006 00000006 c03c41a4 00000000 00000000 c03c4214
5fe0: c0014900 00000013 00000000 00000000 00000000 c0014900 ffffffff ffffffff
[<c01ff6a0>] (soc_camera_host_register+0x230/0x81c) from [<c02c8d50>]
(mx2_camera_probe+0x30c/0x3ac)
[<c02c8d50>] (mx2_camera_probe+0x30c/0x3ac) from [<c0189d30>]
(platform_drv_probe+0x14/0x18)
[<c0189d30>] (platform_drv_probe+0x14/0x18) from [<c0188c3c>]
(driver_probe_device+0xb0/0x1cc)
[<c0188c3c>] (driver_probe_device+0xb0/0x1cc) from [<c0188db8>]
(__driver_attach+0x60/0x84)
[<c0188db8>] (__driver_attach+0x60/0x84) from [<c0187610>]
(bus_for_each_dev+0x48/0x84)
[<c0187610>] (bus_for_each_dev+0x48/0x84) from [<c0187d24>]
(bus_add_driver+0x9c/0x20c)
[<c0187d24>] (bus_add_driver+0x9c/0x20c) from [<c01892c8>]
(driver_register+0xa0/0x138)
[<c01892c8>] (driver_register+0xa0/0x138) from [<c018a05c>]
(platform_driver_probe+0x18/0x98)
[<c018a05c>] (platform_driver_probe+0x18/0x98) from [<c00087c8>]
(do_one_initcall+0x94/0x16c)
[<c00087c8>] (do_one_initcall+0x94/0x16c) from [<c03c42f4>]
(kernel_init+0xe0/0x1ac)
[<c03c42f4>] (kernel_init+0xe0/0x1ac) from [<c0014900>]
(kernel_thread_exit+0x0/0x8)
Code: bad PC value
---[ end trace 7f259a1ce2e10b1a ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b




-- 
Javier Martin
Vista Silicon S.L.
CDTUC - FASE C - Oficina S-345
Avda de los Castros s/n
39005- Santander. Cantabria. Spain
+34 942 25 32 60
www.vista-silicon.com
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