sort: fix -s -r interaction: 'stable' order is not affected by -r

function                                             old     new   delta
compare_keys                                         818     820      +2

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

1 files changed, 3 insertions, 1 deletions

diff --git a/coreutils/sort.c b/coreutils/sort.c
index 0cbb6f597..9ff777851 100644
--- a/coreutils/sort.c
+++ b/coreutils/sort.c
@@ -380,7 +380,9 @@ static int compare_keys(const void *xarg, const void *yarg)
 
                         /* If x > y, 1, else -1 */
                         retval = (x32 > y32) * 2 - 1;
-                } else
+                        /* Here, -r has no effect! */
+                        return retval;
+                }
                 if (!(option_mask32 & FLAG_no_tie_break)) {
                         /* fallback sort */
                         flags = option_mask32;