dd: code shrink

function                                             old     new   delta
dd_main                                             1487    1475     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/coreutils/dd.c b/coreutils/dd.c
index e046ff5cc..9299f58bc 100644
--- a/coreutils/dd.c
+++ b/coreutils/dd.c
@@ -363,13 +363,13 @@ int dd_main(int argc UNUSED_PARAM, char **argv)
         }
         if (skip) {
                 if (lseek(ifd, skip * ibs, SEEK_CUR) < 0) {
-                        while (skip-- > 0) {
+                        do {
                                 ssize_t n = safe_read(ifd, ibuf, ibs);
                                 if (n < 0)
                                         goto die_infile;
                                 if (n == 0)
                                         break;
-                        }
+                        } while (--skip != 0);
                 }
         }
         if (seek) {