[SCSI] qla4xxx: ISP8xxx: Correct retry of adapter initialization

Issue:

For ISP8xxx, adapter initialization is not retried if
qla4xxx_initialize_adapter fails.

Fix:

If qla4xxx_initialize_adapter fails, first check if failure is due to IRQs not
attached in order to skip retrial, then free the IRQs and then retry
initializing the adapter.

Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --cc drivers/scsi/qla4xxx/ql4_glbl.h
Simple merge

diff --cc drivers/scsi/qla4xxx/ql4_init.c
Simple merge

diff --cc drivers/scsi/qla4xxx/ql4_nx.c
Simple merge

diff --cc drivers/scsi/qla4xxx/ql4_os.c
Simple merge