RHEL5: Kernel crash with brocade RIP bfa_ioc_is_operational

Issue

• Kernel crashes with a message similar to the following

Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: 
 [<ffffffff88284b9f>] :bfa:bfa_ioc_is_operational+0x2/0xd
PGD 17f913067 PUD 17a177067 PMD 0 
Oops: 0000 [1] SMP 
last sysfs file: /class/fc_host/host4/statistics/rx_frames
CPU 6 
Modules linked in: autofs4 hidp rfcomm l2cap bluetooth lockd sunrpc ipv6 xfrm_nalgo crypto_api loop dm_multipath scsi_dh video backlight sbs power_meter hwmon i2c_ec i2c_core dell_wmi wmi button battery asus_acpi acpi_memhotplug ac parport_pc lp parport bnx2 bfa shpchp hpilo amd64_edac_mod ide_cd serio_raw pcspkr edac_mc cdrom dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod lpfc scsi_transport_fc cciss sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 4771, comm: cat Not tainted 2.6.18-194.el5 #1
RIP: 0010:[<ffffffff88284b9f>]  [<ffffffff88284b9f>] :bfa:bfa_ioc_is_operational+0x2/0xd
RSP: 0018:ffff810071da3df0  EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff81007c900df8 RCX: ffff810071da3e38
RDX: ffffffff88280cf9 RSI: ffff81007c90d180 RDI: 0000000000000000
RBP: ffff81007c90d180 R08: ffff81017fe8f90e R09: 0000000000000000
R10: ffff81007c90d180 R11: 00000000000000a0 R12: ffffffff88280cf9
R13: ffff810071da3e38 R14: ffffffff8033cd10 R15: ffff81007e90fc58
FS:  00002ac5af7dd260(0000) GS:ffff810037c61dc0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000174f89000 CR4: 00000000000006e0
Process cat (pid: 4771, threadinfo ffff810071da2000, task ffff81007fa1f820)
Stack:  ffffffff88292579 0000000100000000 0000000000000001 ffff81017d451df8
 ffff81007c900000 ffff81007c90d180 ffff81007c9019c0 0000000000000282
 ffffffff882846c6 ffff81007e90fc58 ffffffff00000000 ffff810100000001
Call Trace:
 [<ffffffff88292579>] :bfa:bfa_port_get_stats+0x1f/0x1bc
 [<ffffffff882846c6>] :bfa:bfad_im_get_stats+0x69/0x98
 [<ffffffff880d24b7>] :scsi_transport_fc:fc_stat_show+0x96/0xd0
 [<ffffffff8010dfd0>] sysfs_read_file+0xa5/0x13f
 [<ffffffff8000b6b0>] vfs_read+0xcb/0x171
 [<ffffffff80011c01>] sys_read+0x45/0x6e
 [<ffffffff8005e28d>] tracesys+0xd5/0xe0


Code: 48 81 3f 91 69 28 88 0f 94 c0 c3 45 31 c0 48 8b 87 c0 00 00 
RIP  [<ffffffff88284b9f>] :bfa:bfa_ioc_is_operational+0x2/0xd
 RSP <ffff810071da3df0>
CR2: 0000000000000000