[hackers] [sent] drw.c: Avoid potential memory leak in drw_cur_create() || Quentin Rameau

[git]

commit 996a4c5c6e7b98c9f3ef50846f567b5d6a2da932
Author:     Quentin Rameau <quinq+hackers@fifth.space>
AuthorDate: Wed Nov 18 22:45:26 2015 +0100
Commit:     Markus Teich <markus.te...@stusta.mhn.de>
CommitDate: Wed Nov 18 22:50:07 2015 +0100

    drw.c: Avoid potential memory leak in drw_cur_create()
    
    If drw was NULL, memory was still allocated for cur.

diff --git a/drw.c b/drw.c
index a2dfe6c..15797ce 100644
--- a/drw.c
+++ b/drw.c
@@ -396,9 +396,9 @@ drw_font_getexts(Fnt *font, const char *text, unsigned int 
len, unsigned int *w,
 
 Cur *
 drw_cur_create(Drw *drw, int shape) {
-       Cur *cur = (Cur *)calloc(1, sizeof(Cur));
+       Cur *cur;
 
-       if(!drw || !cur)
+       if(!drw || !(cur = (Cur *)calloc(1, sizeof(Cur))))
                return NULL;
        cur->cursor = XCreateFontCursor(drw->dpy, shape);
        return cur;