copy_fd: close ifd on error

In copy_fd when write fails we ought to close input file descriptor.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

copy.c

@@ -22,13 +22,16 @@ int copy_fd(int ifd, int ofd)
 				buf += written;
 				len -= written;
 			}
-			else if (!written)
+			else if (!written) {
+				close(ifd);
 				return error("copy-fd: write returned 0");
-			else
+			} else {
+				close(ifd);
 				return error("copy-fd: write returned %s",
 					     strerror(errno));
 			}
 		}
+	}
 	close(ifd);
 	return 0;
 }