microsoft
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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/drivers/w1/masters
История
Andreas Kemnade a007734618 w1: omap-hdq: fix missing bus unregister at removal 
The bus master was not removed after unloading the module
or unbinding the driver. That lead to oopses like this

[  127.842987] Unable to handle kernel paging request at virtual address bf01d04c
[  127.850646] pgd = 70e3cd9a
[  127.853698] [bf01d04c] *pgd=8f908811, *pte=00000000, *ppte=00000000
[  127.860412] Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
[  127.866668] Modules linked in: bq27xxx_battery overlay [last unloaded: omap_hdq]
[  127.874542] CPU: 0 PID: 1022 Comm: w1_bus_master1 Not tainted 4.19.0-rc4-00001-g2d51da718324 #12
[  127.883819] Hardware name: Generic OMAP36xx (Flattened Device Tree)
[  127.890441] PC is at 0xbf01d04c
[  127.893798] LR is at w1_search_process_cb+0x4c/0xfc
[  127.898956] pc : [<bf01d04c>]    lr : [<c05f9580>]    psr: a0070013
[  127.905609] sp : cf885f48  ip : bf01d04c  fp : ddf1e11c
[  127.911132] r10: cf8fe040  r9 : c05f8d00  r8 : cf8fe040
[  127.916656] r7 : 000000f0  r6 : cf8fe02c  r5 : cf8fe000  r4 : cf8fe01c
[  127.923553] r3 : c05f8d00  r2 : 000000f0  r1 : cf8fe000  r0 : dde1ef10
[  127.930450] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[  127.938018] Control: 10c5387d  Table: 8f8f0019  DAC: 00000051
[  127.944091] Process w1_bus_master1 (pid: 1022, stack limit = 0x9135699f)
[  127.951171] Stack: (0xcf885f48 to 0xcf886000)
[  127.955810] 5f40:                   cf8fe000 00000000 cf884000 cf8fe090 000003e8 c05f8d00
[  127.964477] 5f60: dde5fc34 c05f9700 ddf1e100 ddf1e540 cf884000 cf8fe000 c05f9694 00000000
[  127.973114] 5f80: dde5fc34 c01499a4 00000000 ddf1e540 c0149874 00000000 00000000 00000000
[  127.981781] 5fa0: 00000000 00000000 00000000 c01010e8 00000000 00000000 00000000 00000000
[  127.990447] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  127.999114] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[  128.007781] [<c05f9580>] (w1_search_process_cb) from [<c05f9700>] (w1_process+0x6c/0x118)
[  128.016479] [<c05f9700>] (w1_process) from [<c01499a4>] (kthread+0x130/0x148)
[  128.024047] [<c01499a4>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[  128.031677] Exception stack(0xcf885fb0 to 0xcf885ff8)
[  128.037017] 5fa0:                                     00000000 00000000 00000000 00000000
[  128.045684] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  128.054351] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[  128.061340] Code: bad PC value
[  128.064697] ---[ end trace af066e33c0e14119 ]---

Cc: <stable@vger.kernel.org>
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2018-10-02 15:36:10 -07:00
..
Kconfig w1: Allow compile test of GPIO consumers if !GPIOLIB 2018-06-26 09:46:27 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ds1wm.c w1: ds1wm: add messages to make incorporation in mfd-drivers easier 2017-08-28 17:20:01 +02:00
ds2482.c w1: ds2482: make module parameter extra_config static 2018-07-03 13:01:48 +02:00
ds2490.c ds2490.c: Move struct open braces to previous line 2018-07-07 17:27:13 +02:00
matrox_w1.c w1: Add subsystem kernel public interface 2017-06-09 11:54:54 +02:00
mxc_w1.c headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
omap_hdq.c w1: omap-hdq: fix missing bus unregister at removal 2018-10-02 15:36:10 -07:00
w1-gpio.c w1: w1-gpio: Convert to use GPIO descriptors 2017-12-08 15:32:53 +01:00