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| author | Finn Thain <fthain@telegraphics.com.au> | 2016-01-03 16:05:28 +1100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-01-06 21:42:57 -0500 |
| commit | 9dafbd939a224b96868fd8db6909662a4cab5957 (patch) | |
| tree | cdaa712ac1b35dea2f91e8f88f8f8c286dbda157 /drivers/eisa/virtual_root.c | |
| parent | a2edc4a63b4f89016053fe5da3fdac3798f3e2ae (diff) | |
| download | blackbird-op-linux-9dafbd939a224b96868fd8db6909662a4cab5957.tar.gz blackbird-op-linux-9dafbd939a224b96868fd8db6909662a4cab5957.zip | |
ncr5380: Add missing lock in eh_abort_handler
The host spin lock needs to be acquired by NCR5380_abort() before it calls
NCR5380_select(). This patch doesn't actually fix the EH issues in this
driver but it does avoid this:
BUG: spinlock already unlocked on CPU#0, kworker/u4:1/14
lock: 0xc0c0f834, .magic: dead4ead, .owner: <none>/-1, .owner_cpu: -1
CPU: 0 PID: 14 Comm: kworker/u4:1 Not tainted 3.15.5 #5
Workqueue: scsi_tmf_4 scmd_eh_abort_handler
Call Trace:
[ef885d70] [c0008acc] show_stack+0x70/0x1bc (unreliable)
[ef885db0] [c0492a00] dump_stack+0x84/0x684
[ef885dc0] [c006f314] spin_dump+0xd0/0xe8
[ef885dd0] [c006f460] do_raw_spin_unlock+0xd4/0xd8
[ef885df0] [c0491c8c] _raw_spin_unlock_irq+0x10/0x3c
[ef885e00] [f381fe3c] NCR5380_select+0x3e4/0x6e8 [dmx3191d]
[ef885e40] [f382026c] NCR5380_abort+0x12c/0x190 [dmx3191d]
[ef885e60] [c02fec9c] scmd_eh_abort_handler+0x100/0x460
[ef885e80] [c0046470] process_one_work+0x16c/0x420
[ef885ea0] [c0046870] worker_thread+0x14c/0x430
[ef885ed0] [c004e4f4] kthread+0xd8/0xec
[ef885f40] [c00124d4] ret_from_kernel_thread+0x5c/0x64
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/eisa/virtual_root.c')
0 files changed, 0 insertions, 0 deletions
