If we fall into that branch it means that there is a range fully covering the
subtract range, so it's suffice to return there if there isn't any other
overlapping ranges.

Also fix the broken phrase issued by printk.

Cc: Yinghai Lu <ying...@kernel.org>
Signed-off-by: Lin Feng <linf...@cn.fujitsu.com>
---
 kernel/range.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/range.c b/kernel/range.c
index 9b8ae2d..223c6fe 100644
--- a/kernel/range.c
+++ b/kernel/range.c
@@ -97,10 +97,10 @@ void subtract_range(struct range *range, int az, u64 start, 
u64 end)
                                range[i].end = range[j].end;
                                range[i].start = end;
                        } else {
-                               printk(KERN_ERR "run of slot in ranges\n");
+                               printk(KERN_ERR "run out of slot in ranges\n");
                        }
                        range[j].end = start;
-                       continue;
+                       return;
                }
        }
 }
-- 
1.8.0.1

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