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linux/drivers/scsi/qla2xxx
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Bart Van Assche 0874f8ec9b qla2xxx: Fix rwlock recursion 
This patch fixes the following kernel bug:

kernel:BUG: rwlock recursion on CPU#2, insmod/39333, ffff8803e998cb28
kernel: Call Trace:
kernel: [<ffffffff812bce44>] dump_stack+0x48/0x64
kernel: [<ffffffff810a8047>] rwlock_bug+0x67/0x70
kernel: [<ffffffff810a833a>] do_raw_write_lock+0x8a/0xa0
kernel: [<ffffffff815f3033>] _raw_write_lock_irqsave+0x63/0x80
kernel: [<ffffffffa08087c8>] qla82xx_rd_32+0xe8/0x140 [qla2xxx]
kernel: [<ffffffffa0808845>] qla82xx_crb_win_lock+0x25/0x60 [qla2xxx]
kernel: [<ffffffffa0808976>] qla82xx_wr_32+0xf6/0x150 [qla2xxx]
kernel: [<ffffffffa0808ac0>] qla82xx_disable_intrs+0x50/0x80 [qla2xxx]
kernel: [<ffffffffa080630a>] qla82xx_reset_chip+0x1a/0x20 [qla2xxx]
kernel: [<ffffffffa07d6ef2>] qla2x00_initialize_adapter+0x132/0x420 [qla2xxx]
kernel: [<ffffffffa08087c8>] qla82xx_rd_32+0xe8/0x140 [qla2xxx]
kernel: [<ffffffffa0808845>] qla82xx_crb_win_lock+0x25/0x60 [qla2xxx]
kernel: [<ffffffffa0808976>] qla82xx_wr_32+0xf6/0x150 [qla2xxx]
kernel: [<ffffffffa0808ac0>] qla82xx_disable_intrs+0x50/0x80 [qla2xxx]
kernel: [<ffffffffa080630a>] qla82xx_reset_chip+0x1a/0x20 [qla2xxx]
kernel: [<ffffffffa07d6ef2>] qla2x00_initialize_adapter+0x132/0x420 [qla2xxx]
kernel: [<ffffffffa07c964e>] qla2x00_probe_one+0xefe/0x2130 [qla2xxx]
kernel: [<ffffffff8130052c>] local_pci_probe+0x4c/0xa0
kernel: [<ffffffff81300603>] pci_call_probe+0x83/0xa0
kernel: [<ffffffff813008cf>] pci_device_probe+0x7f/0xb0
kernel: [<ffffffff813e2e83>] really_probe+0x133/0x390
kernel: [<ffffffff813e3139>] driver_probe_device+0x59/0xd0
kernel: [<ffffffff813e3251>] __driver_attach+0xa1/0xb0
kernel: [<ffffffff813e0cdd>] bus_for_each_dev+0x8d/0xb0
kernel: [<ffffffff813e28ee>] driver_attach+0x1e/0x20
kernel: [<ffffffff813e2252>] bus_add_driver+0x1d2/0x290
kernel: [<ffffffff813e3970>] driver_register+0x60/0xe0
kernel: [<ffffffff813009e4>] __pci_register_driver+0x64/0x70
kernel: [<ffffffffa04bc1cb>] qla2x00_module_init+0x1cb/0x21b [qla2xxx]
kernel: [<ffffffff8100027d>] do_one_initcall+0xad/0x1c0
kernel: [<ffffffff810e2859>] do_init_module+0x69/0x210
kernel: [<ffffffff810e4e5c>] load_module+0x5cc/0x750
kernel: [<ffffffff810e5162>] SyS_init_module+0x92/0xc0
kernel: [<ffffffff815f37d7>] entry_SYSCALL_64_fastpath+0x12/0x6f

Fixes: 8dfa4b5a9b ("qla2xxx: Fix sparse annotation")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reported-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Tested-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Cc: Xose Vazquez Perez <xose.vazquez@gmail.com>
Cc: stable <stable@vger.kernel.org> # v4.3+
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-17 18:21:22 -05:00
..
Kconfig qla2xxx: Update tcm_qla2xxx module description to 24xx+ 2015-08-02 22:41:14 -07:00
Makefile
qla_attr.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_bsg.c qla2xxx: Remove set-but-not-used variables 2015-08-26 10:34:49 -07:00
qla_bsg.h qla2xxx: Change copyright year to 2014 in all the source files. 2014-05-19 13:31:02 +02:00
qla_dbg.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_dbg.h qla2xxx: Change copyright year to 2014 in all the source files. 2014-05-19 13:31:02 +02:00
qla_def.h SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_devtbl.h
qla_dfs.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
qla_fw.h qla2xxx: Honor FCP_RSP retry delay timer field. 2014-09-25 14:25:04 +02:00
qla_gbl.h qla2xxx: remove redundant declaration in 'qla_gbl.h' 2014-11-12 11:32:01 +01:00
qla_gs.c qla2xxx: Remove __constant_ prefix 2015-08-26 10:40:32 -07:00
qla_init.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_inline.h qla2xxx: Honor FCP_RSP retry delay timer field. 2014-09-25 14:25:04 +02:00
qla_iocb.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_isr.c qla2xxx: Do not reset ISP for error entry with an out of range handle. 2015-08-26 17:46:05 -07:00
qla_mbx.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_mid.c qla2xxx: Remove set-but-not-used variables 2015-08-26 10:34:49 -07:00
qla_mr.c qla2xxx: Fix sparse annotations 2015-08-26 10:42:25 -07:00
qla_mr.h qla2xxx: Adjust adapter reset routine to the changes in firmware specification for ISPFx00. 2014-05-19 13:31:03 +02:00
qla_nx.c qla2xxx: Fix rwlock recursion 2015-11-17 18:21:22 -05:00
qla_nx.h qla2xxx: Change copyright year to 2014 in all the source files. 2014-05-19 13:31:02 +02:00
qla_nx2.c qla2xxx: Replace two macros with an inline function 2015-08-26 10:35:35 -07:00
qla_nx2.h qla2xxx: Replace two macros with an inline function 2015-08-26 10:35:35 -07:00
qla_os.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_settings.h qla2xxx: Change copyright year to 2014 in all the source files. 2014-05-19 13:31:02 +02:00
qla_sup.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_target.c SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
qla_target.h qla2xxx: terminate exchange when command is aborted by LIO 2015-07-24 14:19:42 -07:00
qla_tmpl.c qla2xxx: Avoid that sparse complains about context imbalances 2015-08-26 10:46:04 -07:00
qla_tmpl.h qla2xxx: ISP27xx fwdump template error print simplification. 2014-09-25 14:25:02 +02:00
qla_version.h qla2xxx: Update driver version to 8.07.00.26-k 2015-08-26 17:51:01 -07:00
tcm_qla2xxx.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-09-11 19:00:42 -07:00
tcm_qla2xxx.h target: move transport ID handling to the core 2015-05-30 22:42:30 -07:00