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Zheyu Ma 70b639dc41 atm: nicstar: register the interrupt handler in the right place 
Because the error handling is sequential, the application of resources
should be carried out in the order of error handling, so the operation
of registering the interrupt handler should be put in front, so as not
to free the unregistered interrupt handler during error handling.

This log reveals it:

[    3.438724] Trying to free already-free IRQ 23
[    3.439060] WARNING: CPU: 5 PID: 1 at kernel/irq/manage.c:1825 free_irq+0xfb/0x480
[    3.440039] Modules linked in:
[    3.440257] CPU: 5 PID: 1 Comm: swapper/0 Not tainted 5.12.4-g70e7f0549188-dirty #142
[    3.440793] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[    3.441561] RIP: 0010:free_irq+0xfb/0x480
[    3.441845] Code: 6e 08 74 6f 4d 89 f4 e8 c3 78 09 00 4d 8b 74 24 18 4d 85 f6 75 e3 e8 b4 78 09 00 8b 75 c8 48 c7 c7 a0 ac d5 85 e8 95 d7 f5 ff <0f> 0b 48 8b 75 c0 4c 89 ff e8 87 c5 90 03 48 8b 43 40 4c 8b a0 80
[    3.443121] RSP: 0000:ffffc90000017b50 EFLAGS: 00010086
[    3.443483] RAX: 0000000000000000 RBX: ffff888107c6f000 RCX: 0000000000000000
[    3.443972] RDX: 0000000000000000 RSI: ffffffff8123f301 RDI: 00000000ffffffff
[    3.444462] RBP: ffffc90000017b90 R08: 0000000000000001 R09: 0000000000000003
[    3.444950] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[    3.444994] R13: ffff888107dc0000 R14: ffff888104f6bf00 R15: ffff888107c6f0a8
[    3.444994] FS:  0000000000000000(0000) GS:ffff88817bd40000(0000) knlGS:0000000000000000
[    3.444994] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.444994] CR2: 0000000000000000 CR3: 000000000642e000 CR4: 00000000000006e0
[    3.444994] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    3.444994] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    3.444994] Call Trace:
[    3.444994]  ns_init_card_error+0x18e/0x250
[    3.444994]  nicstar_init_one+0x10d2/0x1130
[    3.444994]  local_pci_probe+0x4a/0xb0
[    3.444994]  pci_device_probe+0x126/0x1d0
[    3.444994]  ? pci_device_remove+0x100/0x100
[    3.444994]  really_probe+0x27e/0x650
[    3.444994]  driver_probe_device+0x84/0x1d0
[    3.444994]  ? mutex_lock_nested+0x16/0x20
[    3.444994]  device_driver_attach+0x63/0x70
[    3.444994]  __driver_attach+0x117/0x1a0
[    3.444994]  ? device_driver_attach+0x70/0x70
[    3.444994]  bus_for_each_dev+0xb6/0x110
[    3.444994]  ? rdinit_setup+0x40/0x40
[    3.444994]  driver_attach+0x22/0x30
[    3.444994]  bus_add_driver+0x1e6/0x2a0
[    3.444994]  driver_register+0xa4/0x180
[    3.444994]  __pci_register_driver+0x77/0x80
[    3.444994]  ? uPD98402_module_init+0xd/0xd
[    3.444994]  nicstar_init+0x1f/0x75
[    3.444994]  do_one_initcall+0x7a/0x3d0
[    3.444994]  ? rdinit_setup+0x40/0x40
[    3.444994]  ? rcu_read_lock_sched_held+0x4a/0x70
[    3.444994]  kernel_init_freeable+0x2a7/0x2f9
[    3.444994]  ? rest_init+0x2c0/0x2c0
[    3.444994]  kernel_init+0x13/0x180
[    3.444994]  ? rest_init+0x2c0/0x2c0
[    3.444994]  ? rest_init+0x2c0/0x2c0
[    3.444994]  ret_from_fork+0x1f/0x30
[    3.444994] Kernel panic - not syncing: panic_on_warn set ...
[    3.444994] CPU: 5 PID: 1 Comm: swapper/0 Not tainted 5.12.4-g70e7f0549188-dirty #142
[    3.444994] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[    3.444994] Call Trace:
[    3.444994]  dump_stack+0xba/0xf5
[    3.444994]  ? free_irq+0xfb/0x480
[    3.444994]  panic+0x155/0x3ed
[    3.444994]  ? __warn+0xed/0x150
[    3.444994]  ? free_irq+0xfb/0x480
[    3.444994]  __warn+0x103/0x150
[    3.444994]  ? free_irq+0xfb/0x480
[    3.444994]  report_bug+0x119/0x1c0
[    3.444994]  handle_bug+0x3b/0x80
[    3.444994]  exc_invalid_op+0x18/0x70
[    3.444994]  asm_exc_invalid_op+0x12/0x20
[    3.444994] RIP: 0010:free_irq+0xfb/0x480
[    3.444994] Code: 6e 08 74 6f 4d 89 f4 e8 c3 78 09 00 4d 8b 74 24 18 4d 85 f6 75 e3 e8 b4 78 09 00 8b 75 c8 48 c7 c7 a0 ac d5 85 e8 95 d7 f5 ff <0f> 0b 48 8b 75 c0 4c 89 ff e8 87 c5 90 03 48 8b 43 40 4c 8b a0 80
[    3.444994] RSP: 0000:ffffc90000017b50 EFLAGS: 00010086
[    3.444994] RAX: 0000000000000000 RBX: ffff888107c6f000 RCX: 0000000000000000
[    3.444994] RDX: 0000000000000000 RSI: ffffffff8123f301 RDI: 00000000ffffffff
[    3.444994] RBP: ffffc90000017b90 R08: 0000000000000001 R09: 0000000000000003
[    3.444994] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[    3.444994] R13: ffff888107dc0000 R14: ffff888104f6bf00 R15: ffff888107c6f0a8
[    3.444994]  ? vprintk_func+0x71/0x110
[    3.444994]  ns_init_card_error+0x18e/0x250
[    3.444994]  nicstar_init_one+0x10d2/0x1130
[    3.444994]  local_pci_probe+0x4a/0xb0
[    3.444994]  pci_device_probe+0x126/0x1d0
[    3.444994]  ? pci_device_remove+0x100/0x100
[    3.444994]  really_probe+0x27e/0x650
[    3.444994]  driver_probe_device+0x84/0x1d0
[    3.444994]  ? mutex_lock_nested+0x16/0x20
[    3.444994]  device_driver_attach+0x63/0x70
[    3.444994]  __driver_attach+0x117/0x1a0
[    3.444994]  ? device_driver_attach+0x70/0x70
[    3.444994]  bus_for_each_dev+0xb6/0x110
[    3.444994]  ? rdinit_setup+0x40/0x40
[    3.444994]  driver_attach+0x22/0x30
[    3.444994]  bus_add_driver+0x1e6/0x2a0
[    3.444994]  driver_register+0xa4/0x180
[    3.444994]  __pci_register_driver+0x77/0x80
[    3.444994]  ? uPD98402_module_init+0xd/0xd
[    3.444994]  nicstar_init+0x1f/0x75
[    3.444994]  do_one_initcall+0x7a/0x3d0
[    3.444994]  ? rdinit_setup+0x40/0x40
[    3.444994]  ? rcu_read_lock_sched_held+0x4a/0x70
[    3.444994]  kernel_init_freeable+0x2a7/0x2f9
[    3.444994]  ? rest_init+0x2c0/0x2c0
[    3.444994]  kernel_init+0x13/0x180
[    3.444994]  ? rest_init+0x2c0/0x2c0
[    3.444994]  ? rest_init+0x2c0/0x2c0
[    3.444994]  ret_from_fork+0x1f/0x30
[    3.444994] Dumping ftrace buffer:
[    3.444994]    (ftrace buffer empty)
[    3.444994] Kernel Offset: disabled
[    3.444994] Rebooting in 1 seconds..

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2021-06-21 14:28:53 -07:00
Documentation mm/slub: clarify verification reporting 2021-06-16 09:24:42 -07:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
arch pci-v5.13-fixes-2 2021-06-18 13:54:11 -07:00
block block-5.13-2021-05-22 2021-05-22 07:40:34 -10:00
certs Kbuild updates for v5.13 (2nd) 2021-05-08 10:00:11 -07:00
crypto async_xor: check src_offs is not NULL before updating it 2021-06-10 19:40:14 -07:00
drivers atm: nicstar: register the interrupt handler in the right place 2021-06-21 14:28:53 -07:00
fs for-5.13-rc6-tag 2021-06-18 16:39:03 -07:00
include net: sched: add barrier to ensure correct ordering for lockless qdisc 2021-06-21 11:51:41 -07:00
init pid: take a reference when initializing `cad_pid` 2021-06-05 08:58:11 -07:00
ipc ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry 2021-05-22 15:09:07 -10:00
kernel Networking fixes for 5.13-rc7, including fixes from wireless, bpf, 2021-06-18 18:55:29 -07:00
lib lib: crc64: fix kernel-doc warning 2021-06-05 08:58:12 -07:00
mm mm/sparse: fix check_usemap_section_nr warnings 2021-06-16 09:24:43 -07:00
net mptcp: fix 32 bit DSN expansion 2021-06-21 14:21:28 -07:00
samples VFIO fixes for v5.13-rc5 2021-06-03 11:52:24 -07:00
scripts recordmcount: Correct st_shndx handling 2021-06-18 09:09:17 -04:00
security trusted-keys: match tpm_get_ops on all return paths 2021-05-12 22:36:37 +03:00
sound sound fixes for 5.13-rc6 2021-06-11 10:47:10 -07:00
tools Networking fixes for 5.13-rc7, including fixes from wireless, bpf, 2021-06-18 18:55:29 -07:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: VMX: update vcpu posted-interrupt descriptor when assigning device 2021-05-27 07:58:23 -04:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: use private address for Michel Lespinasse 2021-06-05 08:58:12 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: move Murali Karicheri to credits 2021-04-29 15:47:30 -07:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Networking fixes for 5.13-rc7, including fixes from wireless, bpf, 2021-06-18 18:55:29 -07:00
Makefile Clang feature fix for v5.13-rc7 2021-06-16 08:57:44 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.