scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3

The condition (reg_val != 2) || (reg_val != 3) will always be true because
reg_val cannot be equal to two different values at the same time. Fix this
by replacing the || operator with && so that the loop will loop if reg_val
is not a 2 and not a 3 as was originally intended.

Fixes: 50dc2f2 ("scsi: pm80xx: Modified the logic to collect fatal dump")
Link: https://lore.kernel.org/r/[email protected]
Addresses-Coverity: ("Constant expression result")
Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Jack Wang <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: Colin Ian King

drivers/scsi/pm8001/pm80xx_hwi.c

@@ -348,7 +348,7 @@ ssize_t pm80xx_get_fatal_dump(struct device *cdev,
 			do {
 				reg_val = pm8001_mr32(fatal_table_address,
 					MPI_FATAL_EDUMP_TABLE_STATUS);
-			} while (((reg_val != 2) || (reg_val != 3)) &&
+			} while (((reg_val != 2) && (reg_val != 3)) &&
 					time_before(jiffies, start));
 
 			if (reg_val < 2) {