Robert Jarzmik
817ed5748e
pcmcia: lubbock: fix sockets configuration
On lubbock board, the probe of the driver crashes by dereferencing very
early a platform_data structure which is not set, in
pxa2xx_configure_sockets().
The stack fixed is :
[ 0.244353] SA1111 Microprocessor Companion Chip: silicon revision 1, metal revision 1
[ 0.256321] sa1111 sa1111: Providing IRQ336-390
[ 0.340899] clocksource: Switched to clocksource oscr0
[ 0.472263] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[ 0.480469] pgd = c0004000
[ 0.483432] [00000004] *pgd=00000000
[ 0.487105] Internal error: Oops: f5 [#1] ARM
[ 0.491497] Modules linked in:
[ 0.494650] CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-rc3-00080-g1aaa68426f0c-dirty #2068
[ 0.503229] Hardware name: Intel DBPXA250 Development Platform (aka Lubbock)
[ 0.510344] task: c3e42000 task.stack: c3e44000
[ 0.514984] PC is at pxa2xx_configure_sockets+0x4/0x24 (drivers/pcmcia/pxa2xx_base.c:227)
[ 0.520193] LR is at pcmcia_lubbock_init+0x1c/0x38
[ 0.525079] pc : [<c0247c30>] lr : [<c02479b0>] psr: a0000053
[ 0.525079] sp : c3e45e70 ip : 100019ff fp : 00000000
[ 0.536651] r10: c0828900 r9 : c0434838 r8 : 00000000
[ 0.541953] r7 : c0820700 r6 : c0857b30 r5 : c3ec1400 r4 : c0820758
[ 0.548549] r3 : 00000000 r2 : 0000000c r1 : c3c09c40 r0 : c3ec1400
[ 0.555154] Flags: NzCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment none
[ 0.562450] Control: 0000397f Table: a0004000 DAC: 00000053
[ 0.568257] Process swapper (pid: 1, stack limit = 0xc3e44190)
[ 0.574154] Stack: (0xc3e45e70 to 0xc3e46000)
[ 0.578610] 5e60: c4849800 00000000 c3ec1400 c024769c
[ 0.586928] 5e80: 00000000 c3ec140c c3c0ee0c c3ec1400 c3ec1434 c020c410 c3ec1400 c3ec1434
[ 0.595244] 5ea0: c0820700 c080b408 c0828900 c020c5f8 00000000 c0820700 c020c578 c020ac5c
[ 0.603560] 5ec0: c3e687cc c3e71e10 c0820700 00000000 c3c02de0 c020bae4 c03c62f7 c03c62f7
[ 0.611872] 5ee0: c3e68780 c0820700 c042e034 00000000 c043c440 c020cdec c080b408 00000005
[ 0.620188] 5f00: c042e034 c00096c0 c0034440 c01c730c 20000053 ffffffff 00000000 00000000
[ 0.628502] 5f20: 00000000 c3ffcb87 c3ffcb90 c00346ac c3e66ba0 c03f7914 00000092 00000005
[ 0.636811] 5f40: 00000005 c03f847c 00000091 c03f847c 00000000 00000005 c0434828 00000005
[ 0.645125] 5f60: c043482c 00000092 c043c440 c0828900 c0434838 c0418d2c 00000005 00000005
[ 0.653430] 5f80: 00000000 c041858c 00000000 c032e9f0 00000000 00000000 00000000 00000000
[ 0.661729] 5fa0: 00000000 c032e9f8 00000000 c000f0f0 00000000 00000000 00000000 00000000
[ 0.670020] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 0.678311] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 0.686673] (pxa2xx_configure_sockets) from pcmcia_lubbock_init (/drivers/pcmcia/sa1111_lubbock.c:161)
[ 0.696026] (pcmcia_lubbock_init) from pcmcia_probe (/drivers/pcmcia/sa1111_generic.c:213)
[ 0.704358] (pcmcia_probe) from driver_probe_device (/drivers/base/dd.c:378 /drivers/base/dd.c:499)
[ 0.712848] (driver_probe_device) from __driver_attach (/./include/linux/device.h:983 /drivers/base/dd.c:733)
[ 0.721414] (__driver_attach) from bus_for_each_dev (/drivers/base/bus.c:313)
[ 0.729723] (bus_for_each_dev) from bus_add_driver (/drivers/base/bus.c:708)
[ 0.738036] (bus_add_driver) from driver_register (/drivers/base/driver.c:169)
[ 0.746185] (driver_register) from do_one_initcall (/init/main.c:778)
[ 0.754561] (do_one_initcall) from kernel_init_freeable (/init/main.c:843 /init/main.c:851 /init/main.c:869 /init/main.c:1016)
[ 0.763409] (kernel_init_freeable) from kernel_init (/init/main.c:944)
[ 0.771660] (kernel_init) from ret_from_fork (/arch/arm/kernel/entry-common.S:119)
[ 0.779347] Code: c03c6305 c03c631e c03c632e e5903048 (e993000c)
All code
========
0: c03c6305 eorsgt r6, ip, r5, lsl #6
4: c03c631e eorsgt r6, ip, lr, lsl r3
8: c03c632e eorsgt r6, ip, lr, lsr #6
c: e5903048 ldr r3, [r0, #72] ; 0x48
10:* e993000c ldmib r3, {r2, r3} <-- trapping instruction
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2016-09-12 10:57:01 +01:00
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