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[SCSI] be2iscsi: fix null ptr when accessing task hdr

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If alloc_pdu fails then the task->hdr pointer may not be
set. This adds a check for this case in the cleanup callback.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Mike Christie 2010-12-31 02:22:20 -06:00 committed by James Bottomley
parent bc7accec87
commit 1227633a44
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/be2iscsi/be_main.c
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@ -3914,7 +3914,8 @@ static void beiscsi_cleanup_task(struct iscsi_task *task)
io_task->psgl_handle = NULL;
}
} else {
if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN)
if (task->hdr &&
((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN))
return;
if (io_task->psgl_handle) {
spin_lock(&phba->mgmt_sgl_lock);