• Vikas Chaudhary's avatar
    [SCSI] qla4xxx: Fix panic while rmmod · f8b0751d
    Vikas Chaudhary authored
    Issue:
    System panic on rmmod if probe_adapter had failed during driver load.
    
    Call Trace:
     [<ffffffffa071aa5a>] qla4xxx_abort_active_cmds+0x4a/0xa0 [qla4xxx]
     [<ffffffffa07224db>] qla4xxx_free_adapter+0x1b/0x1b0 [qla4xxx]
     [<ffffffffa073991f>] qla4xxx_remove_adapter+0x294/0x2c7 [qla4xxx]
     [<ffffffff812930b7>] pci_device_remove+0x37/0x70
     [<ffffffff8135006f>] __device_release_driver+0x6f/0xe0
     [<ffffffff813501a8>] driver_detach+0xc8/0xd0
     [<ffffffff8134ef0e>] bus_remove_driver+0x8e/0x110
     [<ffffffff81350972>] driver_unregister+0x62/0xa0
     [<ffffffff812933c4>] pci_unregister_driver+0x44/0xb0
     [<ffffffffa0739659>] qla4xxx_module_exit+0x15/0x47 [qla4xxx]
     [<ffffffff810addd4>] sys_delete_module+0x194/0x260
     [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
     [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
    
    Fix:
    Do not cleanup resources on remove_adapter as they are cleaned up during
    probe_adapter exit.
    Signed-off-by: default avatarVikas Chaudhary <vikas.chaudhary@qlogic.com>
    Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
    f8b0751d
ql4_os.c 176 KB