These 3 functions include several uses of BUG_ON() and lack error
management. Change all 3 functions to handle their errors in better
ways.

Eshaan Deshmukh (3):
  scsi: libsas: Handle errors in sas_ex_add_parent_port()
  scsi: libsas: Handle errors in sas_set_ex_phy()
  scsi: libsas: Handle errors in  sas_ex_discover_expander()

 drivers/scsi/libsas/sas_expander.c | 99 ++++++++++++++++++++----------
 1 file changed, 65 insertions(+), 34 deletions(-)

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2.55.0