scsi: ufs: non functional macro fix

Not having () isn't likely to do any harm in this case, but all the
other macros below do have it. Also add "are" in a comment.
Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufshcd.c

@@ -151,11 +151,11 @@ enum {
 };
 
 #define ufshcd_set_eh_in_progress(h) \
-	(h->eh_flags |= UFSHCD_EH_IN_PROGRESS)
+	((h)->eh_flags |= UFSHCD_EH_IN_PROGRESS)
 #define ufshcd_eh_in_progress(h) \
-	(h->eh_flags & UFSHCD_EH_IN_PROGRESS)
+	((h)->eh_flags & UFSHCD_EH_IN_PROGRESS)
 #define ufshcd_clear_eh_in_progress(h) \
-	(h->eh_flags &= ~UFSHCD_EH_IN_PROGRESS)
+	((h)->eh_flags &= ~UFSHCD_EH_IN_PROGRESS)
 
 #define ufshcd_set_ufs_dev_active(h) \
 	((h)->curr_dev_pwr_mode = UFS_ACTIVE_PWR_MODE)
@@ -1491,7 +1491,7 @@ int ufshcd_hold(struct ufs_hba *hba, bool async)
 			break;
 		}
 		/*
-		 * If we here, it means gating work is either done or
+		 * If we are here, it means gating work is either done or
 		 * currently running. Hence, fall through to cancel gating
 		 * work and to enable clocks.
 		 */