pm8001: Cleaning up uninitialized variables

There is a risk that the variable will be used without being initialized.

This was largely found by using a static code analysis program called cppche

Signed-off-by: Rickard Strandqvist <[e-mail]>
Acked-by: Suresh Thiagarajan <[e-mail]>
Acked-by: Jack Wang <[e-mail]>
Signed-off-by: Christoph Hellwig <[e-mail]>

drivers/scsi/pm8001/pm80xx_hwi.c

···
 pm80xx_get_encrypt_info(struct pm8001_hba_info *pm8001_ha)
 {
 	u32 scratch3_value;
-	int ret;
+	int ret = -1;
 
 	/* Read encryption status from SCRATCH PAD 3 */
 	scratch3_value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
···
 		pm8001_ha->encrypt_info.status = 0xFFFFFFFF;
 		pm8001_ha->encrypt_info.cipher_mode = 0;
 		pm8001_ha->encrypt_info.sec_mode = 0;
-		return 0;
+		ret = 0;
 	} else if ((scratch3_value & SCRATCH_PAD3_ENC_MASK) ==
 				SCRATCH_PAD3_ENC_DIS_ERR) {
 		pm8001_ha->encrypt_info.status =
···
 			scratch3_value, pm8001_ha->encrypt_info.cipher_mode,
 			pm8001_ha->encrypt_info.sec_mode,
 			pm8001_ha->encrypt_info.status));
-		ret = -1;
 	} else if ((scratch3_value & SCRATCH_PAD3_ENC_MASK) ==
 				 SCRATCH_PAD3_ENC_ENA_ERR) {
 
···
 			scratch3_value, pm8001_ha->encrypt_info.cipher_mode,
 			pm8001_ha->encrypt_info.sec_mode,
 			pm8001_ha->encrypt_info.status));
-		ret = -1;
 	}
 	return ret;
 }