shell: fix completion

More precisely, fix completion when all commands share the same first
characters.

1 files changed, 7 insertions, 6 deletions

diff --git a/shell.c b/shell.c
index 3f5c7c6..84c1823 100644
--- a/shell.c
+++ b/shell.c
@@ -303,15 +303,16 @@ shell_cmd_complete(const char *str, unsigned long *sizep,
         next = next->ls_next;
     }
 
-    if (size != 0) {
-        while ((cmd->name[size - 1] != '\0')
-               && (cmd->name[size - 1] == next->name[size - 1])) {
-            size++;
-        }
+    if (size == 0) {
+        size = 1;
+    }
 
-        size--;
+    while ((cmd->name[size - 1] != '\0')
+           && (cmd->name[size - 1] == next->name[size - 1])) {
+        size++;
     }
 
+    size--;
     *sizep = size;
     return ERR_AGAIN;
 }