Yu Wang 50e79e2525 ath10k: fix kernel panic issue during pci probe ... If device gone during chip reset, ar->normal_mode_fw.board is not initialized, but ath10k_debug_print_hwfw_info() will try to access its member, which will cause 'kernel NULL pointer' issue. This was found using a faulty device (pci link went down sometimes) in a random insmod/rmmod/other-op test. To fix it, check ar->normal_mode_fw.board before accessing the member. pci 0000:02:00.0: BAR 0: assigned [mem 0xf7400000-0xf75fffff 64bit] ath10k_pci 0000:02:00.0: enabling device (0000 -> 0002) ath10k_pci 0000:02:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0 ath10k_pci 0000:02:00.0: failed to read device register, device is gone ath10k_pci 0000:02:00.0: failed to wait for target init: -5 ath10k_pci 0000:02:00.0: failed to warm reset: -5 ath10k_pci 0000:02:00.0: firmware crashed during chip reset ath10k_pci 0000:02:00.0: firmware crashed! (uuid 5d018951-b8e1-404a-8fde-923078b4423a) ath10k_pci 0000:02:00.0: (null) target 0x00000000 chip_id 0x00340aff sub 0000:0000 ath10k_pci 0000:02:00.0: kconfig debug 1 debugfs 1 tracing 1 dfs 1 testmode 1 ath10k_pci 0000:02:00.0: firmware ver api 0 features crc32 00000000 ... BUG: unable to handle kernel NULL pointer dereference at 00000004 ... Call Trace: [<fb4e7882>] ath10k_print_driver_info+0x12/0x20 [ath10k_core] [<fb62b7dd>] ath10k_pci_fw_crashed_dump+0x6d/0x4d0 [ath10k_pci] [<fb629f07>] ? ath10k_pci_sleep.part.19+0x57/0xc0 [ath10k_pci] [<fb62c8ee>] ath10k_pci_hif_power_up+0x14e/0x1b0 [ath10k_pci] [<c10477fb>] ? do_page_fault+0xb/0x10 [<fb4eb934>] ath10k_core_register_work+0x24/0x840 [ath10k_core] [<c18a00d8>] ? netlbl_unlhsh_remove+0x178/0x410 [<c10477f0>] ? __do_page_fault+0x480/0x480 [<c1068e44>] process_one_work+0x114/0x3e0 [<c1069d07>] worker_thread+0x37/0x4a0 [<c106e294>] kthread+0xa4/0xc0 [<c1069cd0>] ? create_worker+0x180/0x180 [<c106e1f0>] ? kthread_park+0x50/0x50 [<c18ab4f7>] ret_from_fork+0x1b/0x28 Code: 78 80 b8 50 09 00 00 00 75 5d 8d 75 94 c7 44 24 08 aa d7 52 fb c7 44 24 04 64 00 00 00 89 34 24 e8 82 52 e2 c5 8b 83 dc 08 00 00 <8b> 50 04 8b 08 31 c0 e8 20 57 e3 c5 89 44 24 10 8b 83 58 09 00 EIP: [<fb4e7754>]- ath10k_debug_print_board_info+0x34/0xb0 [ath10k_core] SS:ESP 0068:f4921d90 CR2: 0000000000000004 Signed-off-by: Yu Wang <yyuwang@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>		2018-02-07 16:16:10 +02:00
..
ar5523	ath: Convert timers to use timer_setup()	2017-10-27 16:54:19 +03:00
ath5k	Merge branch 'linus' into locking/core, to resolve conflicts	2017-11-07 10:32:44 +01:00
ath6kl	ath6kl: improve endianness handling	2017-12-07 16:35:17 +02:00
ath9k	ath9k: Fix get channel default noise floor	2018-02-07 16:14:08 +02:00
ath10k	ath10k: fix kernel panic issue during pci probe	2018-02-07 16:16:10 +02:00
carl9170	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
wcn36xx	wcn36xx: release DMA memory in case of error	2018-01-25 07:36:22 +02:00
wil6210	wil6210: support parsing brd file address from fw file	2018-01-25 07:32:37 +02:00
ath.h	ath9k: add a helper to get the string representation of ath_bus_type	2016-11-15 16:55:37 +02:00
debug.c
dfs_pattern_detector.c	ath: constify local structures	2016-09-14 20:01:39 +03:00
dfs_pattern_detector.h
dfs_pri_detector.c
dfs_pri_detector.h
hw.c
Kconfig
key.c
main.c	ath9k: add a helper to get the string representation of ath_bus_type	2016-11-15 16:55:37 +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
reg.h
regd_common.h
regd.c	ath: Fix updating radar flags for coutry code India	2017-04-19 17:09:26 +03:00
regd.h	ath: export alpha2 helper	2016-10-04 18:01:48 +03:00
spectral_common.h
trace.c
trace.h