rem: free(pix);
add: wfree(pix);
context: wPixmapCreateFromXBMData(WScreen *scr, char *data, char *mask, 			 int width, int height, unsigned long fg,			 unsigned long bg){    WPixmap *pix;        pix = wmalloc(sizeof(WPixmap));    memset(pix, 0, sizeof(WPixmap));    pix->image = XCreatePixmapFromBitmapData(dpy, scr->w_win, data, width, 					     height, fg, bg, scr->w_depth);    if (pix->image==None) {	free(pix);	return NULL;    }    if (mask) {	pix->mask = XCreateBitmapFromData(dpy, scr->w_win, mask, width, 					  height);    } else {	pix->mask = None;    }    pix->width = width;    pix->height = height;    pix->depth = scr->w_depth;    return pix;}