ash,hush: drop pointer check before calls to show_history

show_history() checks that its argument in non-null so there's
no need to repeat the test at call sites.

function                                             old     new   delta
historycmd                                            25      17      -8
builtin_history                                       29      21      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-16)             Total: -16 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 2 insertions, 4 deletions

diff --git a/shell/ash.c b/shell/ash.c
index a11b1d67d..2a4c839a7 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -13824,8 +13824,7 @@ helpcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 static int FAST_FUNC
 historycmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 {
-        if (line_input_state)
-                show_history(line_input_state);
+        show_history(line_input_state);
         return EXIT_SUCCESS;
 }
 #endif
diff --git a/shell/hush.c b/shell/hush.c
index 0a92f5da7..cab7ea5b0 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -10461,8 +10461,7 @@ static int FAST_FUNC builtin_help(char **argv UNUSED_PARAM)
 #if MAX_HISTORY && ENABLE_FEATURE_EDITING
 static int FAST_FUNC builtin_history(char **argv UNUSED_PARAM)
 {
-        if (G.line_input_state)
-                show_history(G.line_input_state);
+        show_history(G.line_input_state);
         return EXIT_SUCCESS;
 }
 #endif