[ipxe-devel] [PATCH] [mcurses] Fix GCC 6 nonnull-compare errors.

[Vinson Lee]

Remove null checks for arguments declared as nonnull.

  [BUILD] bin/windows.o
hci/mucurses/windows.c: In function ‘delwin’:
hci/mucurses/windows.c:21:5: error: nonnull argument ‘win’ compared to NULL [-Werror=nonnull-compare]
  if ( win == NULL )
     ^
hci/mucurses/windows.c: In function ‘derwin’:
hci/mucurses/windows.c:54:5: error: nonnull argument ‘parent’ compared to NULL [-Werror=nonnull-compare]
  if ( parent == NULL )
     ^
hci/mucurses/windows.c: In function ‘dupwin’:
hci/mucurses/windows.c:78:5: error: nonnull argument ‘orig’ compared to NULL [-Werror=nonnull-compare]
  if ( orig == NULL )
     ^
hci/mucurses/windows.c: In function ‘mvwin’:
hci/mucurses/windows.c:102:5: error: nonnull argument ‘win’ compared to NULL [-Werror=nonnull-compare]
  if ( win == NULL )
     ^
hci/mucurses/windows.c: In function ‘subwin’:
hci/mucurses/windows.c:152:5: error: nonnull argument ‘parent’ compared to NULL [-Werror=nonnull-compare]
  if ( parent == NULL )
     ^

Fixes: d39e79248c2d ("__nonnull changes")
Signed-off-by: Vinson Lee <vlee at freedesktop.org>
---
 src/hci/mucurses/windows.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/src/hci/mucurses/windows.c b/src/hci/mucurses/windows.c
index 7f39bdea2b7d..5f5d1f4e2a16 100644
--- a/src/hci/mucurses/windows.c
+++ b/src/hci/mucurses/windows.c
@@ -18,9 +18,6 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
  * @ret rc	return status code
  */
 int delwin ( WINDOW *win ) {
-	if ( win == NULL )
-		return ERR;
-
 	/* I think we should blank the region covered by the window -
 	   ncurses doesn't do this, but they have a buffer, so they
 	   may just be deleting from an offscreen context whereas we
@@ -51,8 +48,6 @@ int delwin ( WINDOW *win ) {
 WINDOW *derwin ( WINDOW *parent, int nlines, int ncols,
 	     		  	 int begin_y, int begin_x ) {
 	WINDOW *child;
-	if ( parent == NULL )
-		return NULL;
 	if ( ( child = malloc( sizeof( WINDOW ) ) ) == NULL )
 		return NULL;
 	if ( ( (unsigned)ncols > parent->width ) || 
@@ -75,8 +70,6 @@ WINDOW *derwin ( WINDOW *parent, int nlines, int ncols,
  */
 WINDOW *dupwin ( WINDOW *orig ) {
 	WINDOW *copy;
-	if ( orig == NULL )
-		return NULL;
 	if ( ( copy = malloc( sizeof( WINDOW ) ) ) == NULL )
 		return NULL;
 	copy->scr = orig->scr;
@@ -99,8 +92,6 @@ WINDOW *dupwin ( WINDOW *orig ) {
  * @ret rc	return status code
  */
 int mvwin ( WINDOW *win, int y, int x ) {
-	if ( win == NULL )
-		return ERR;
 	if ( ( ( (unsigned)y + win->height ) > LINES ) ||
 	     ( ( (unsigned)x + win->width ) > COLS ) )
 		return ERR;
@@ -149,8 +140,6 @@ WINDOW *newwin ( int nlines, int ncols, int begin_y, int begin_x ) {
 WINDOW *subwin ( WINDOW *parent, int nlines, int ncols,
 			         int begin_y, int begin_x ) {
 	WINDOW *child;
-	if ( parent == NULL )
-		return NULL;
 	if ( ( child = malloc( sizeof( WINDOW ) ) ) == NULL )
 		return NULL;
 	child = newwin( nlines, ncols, begin_y, begin_x );
-- 
2.7.1