sparse found a bug that has always been present since the driver was
merged:

drivers/scsi/pmcraid.c:2353:12: warning: context imbalance in 'pmcraid_reset_reload' - different lock contexts for basic block

Fix this by using a common unlock goto label, and also reduce the
indentation level in the function.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reported-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>