Remove more superfluous if(p) checks around free(p)

Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>

exa/exa_glyphs.c

@@ -127,15 +127,11 @@ exaUnrealizeGlyphCaches(ScreenPtr    pScreen,
 	    cache->picture = NULL;
 	}
 
-	if (cache->hashEntries) {
 	free(cache->hashEntries);
 	cache->hashEntries = NULL;
-	}
 	
-	if (cache->glyphs) {
 	free(cache->glyphs);
 	cache->glyphs = NULL;
-	}
 	cache->glyphCount = 0;
     }
 }

hw/kdrive/ephyr/ephyrhostvideo.c

@@ -831,10 +831,8 @@ out:
         XFreeGC (dpy, gc) ;
         gc = NULL ;
     }
-    if (rects) {
     free(rects);
     rects = NULL;
-    }
     EPHYR_LOG ("leave\n") ;
     return is_ok ;
 }

hw/kdrive/ephyr/hostx.c

@@ -668,12 +668,9 @@ hostx_screen_init (EphyrScreenInfo screen,
 	  shmctl(host_screen->shminfo.shmid, IPC_RMID, 0);
 	}
       else
-	{
-	  if (host_screen->ximg->data) 
 	{
 	  free(host_screen->ximg->data);
 	  host_screen->ximg->data = NULL;
-	    } 
 
 	  XDestroyImage(host_screen->ximg);
 	}
@@ -1160,10 +1157,8 @@ out:
         XFree (visuals) ;
         visuals = NULL;
     }
-    if (host_visuals) {
     free(host_visuals);
     host_visuals = NULL;
-    }
     EPHYR_LOG ("leave\n") ;
     return is_ok ;
 
@@ -1292,10 +1287,8 @@ hostx_set_window_bounding_rectangles (int a_window,
                              rects, a_num_rects, ShapeSet, YXBanded) ;
     is_ok = TRUE ;
 
-    if (rects) {
     free(rects);
     rects = NULL;
-    }
     EPHYR_LOG ("leave\n") ;
     return is_ok;
 }
@@ -1329,10 +1322,8 @@ hostx_set_window_clipping_rectangles (int a_window,
                              rects, a_num_rects, ShapeSet, YXBanded) ;
     is_ok = TRUE ;
 
-    if (rects) {
     free(rects);
     rects = NULL;
-    }
     EPHYR_LOG ("leave\n") ;
     return is_ok;
 }

hw/xfree86/modes/xf86Cursors.c

@@ -659,11 +659,8 @@ xf86_cursors_fini (ScreenPtr screen)
 	xf86DestroyCursorInfoRec (xf86_config->cursor_info);
 	xf86_config->cursor_info = NULL;
     }
-    if (xf86_config->cursor_image)
-    {
     free(xf86_config->cursor_image);
     xf86_config->cursor_image = NULL;
-    }
     if (xf86_config->cursor)
     {
 	FreeCursor (xf86_config->cursor, None);

hw/xfree86/os-support/bus/Sbus.c

@@ -191,10 +191,8 @@ sparcPromClose(void)
 	close(promFd);
 	promFd = -1;
     }
-    if (promOpio) {
     free(promOpio);
     promOpio = NULL;
-    }
     promOpenCount = 0;
 }
 

hw/xwin/InitOutput.c

@@ -275,11 +275,8 @@ ddxGiveUp (void)
     }
   
   /* Free concatenated command line */
-  if (g_pszCommandLine)
-    {
   free(g_pszCommandLine);
   g_pszCommandLine = NULL;
-    }
 
   /* Remove our keyboard hook if it is installed */
   winRemoveKeyboardHookLL ();

xkb/XKBGAlloc.c

@@ -114,11 +114,9 @@ register char *ptr;
     }
     if (freeAll) {
 	(*num_inout)= (*sz_inout)= 0;
-	if (*elems) {
 	free(*elems);
 	*elems = NULL;
     }
-    }
     else if (first+count>=(*num_inout))
 	*num_inout= first;
     else {
@@ -137,14 +135,10 @@ _XkbClearProperty(char *prop_in)
 {
 XkbPropertyPtr	prop= (XkbPropertyPtr)prop_in;
 
-    if (prop->name) {
     free(prop->name);
     prop->name = NULL;
-    }
-    if (prop->value) {
     free(prop->value);
     prop->value = NULL;
-    }
     return;
 }
 

xkb/XKBMAlloc.c

@@ -221,18 +221,12 @@ XkbCopyKeyType(XkbKeyTypePtr from,XkbKeyTypePtr into)
 {
     if ((!from)||(!into))
 	return BadMatch;
-    if (into->map) {
     free(into->map);
     into->map = NULL;
-    }
-    if (into->preserve) {
     free(into->preserve);
     into->preserve = NULL;
-    }
-    if (into->level_names) {
     free(into->level_names);
     into->level_names = NULL;
-    }
     *into= *from;
     if ((from->map)&&(into->map_count>0)) {
 	into->map= calloc(into->map_count, sizeof(XkbKTMapEntryRec));

xkb/ddxList.c

@@ -208,10 +208,7 @@ char	tmpname[PATH_MAX];
 	return BadImplementation;
     }
     list->nFound[what]= 0;
-    if (buf) {
     free(buf);
-        buf = NULL;
-    }
     buf = malloc(PATH_MAX * sizeof(char));
     if (!buf)
         return BadAlloc;

xkb/xkb.c

@@ -5510,10 +5510,8 @@ ProcXkbListComponents(ClientPtr client)
     if ((XkbPaddedSize(len)/4)!=stuff->length)
 	return BadLength;
     if ((status=XkbDDXList(dev,&list,client))!=Success) {
-	if (list.pool) {
 	free(list.pool);
 	list.pool = NULL;
-	}
 	return status;
     }
     memset(&rep, 0, sizeof(xkbListComponentsReply));
@@ -5886,11 +5884,16 @@ ProcXkbGetKbdByName(ClientPtr client)
 	XkbFreeKeyboard(new,XkbAllComponentsMask,TRUE);
 	new= NULL;
     }
-    if (names.keycodes)	{ free(names.keycodes); names.keycodes= NULL; }
+    free(names.keycodes);
-    if (names.types)	{ free(names.types); names.types= NULL; }
+    names.keycodes = NULL;
-    if (names.compat)	{ free(names.compat); names.compat= NULL; }
+    free(names.types);
-    if (names.symbols)	{ free(names.symbols); names.symbols= NULL; }
+    names.types = NULL;
-    if (names.geometry)	{ free(names.geometry); names.geometry= NULL; }
+    free(names.compat);
+    names.compat = NULL;
+    free(names.symbols);
+    names.symbols = NULL;
+    free(names.geometry);
+    names.geometry = NULL;
     return Success;
 }
 

xkb/xkbInit.c

@@ -635,10 +635,8 @@ unwind_key:
 void
 XkbFreeInfo(XkbSrvInfoPtr xkbi)
 {
-    if (xkbi->radioGroups) {
     free(xkbi->radioGroups);
     xkbi->radioGroups = NULL;
-    }
     if (xkbi->mouseKeyTimer) {
 	TimerFree(xkbi->mouseKeyTimer);
 	xkbi->mouseKeyTimer= NULL;