Return error if SpliceCopy fails.

e0de488a · Han-Wen Nienhuys · e94d1080 · e0de488a
Commit e0de488a authored Jun 16, 2012 by Han-Wen Nienhuys
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splice/copy.go splice/copy.go +2 -1

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--- a/splice/copy.go
+++ b/splice/copy.go
 package splice

 import (
+	"fmt"
 	"io"
 	"os"
 )
@@ -22,7 +23,7 @@ func SpliceCopy(dst *os.File, src *os.File, p *Pair) (int64, error) {
 			return total, err
 		}
 		if m < n {
-			panic("m<n")
+			return total, err
 		}
 		if int(n) < p.size {
 			break