tests/util: fix signed/unsigned comparisons

Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

diff --git a/tests/util/pattern.c b/tests/util/pattern.c
index 00b08a8..095eadf 100644 (file)
--- a/tests/util/pattern.c
+++ b/tests/util/pattern.c
@@ -549,7 +549,6 @@ static void make_pwetty(void *data, unsigned int width, unsigned int height,
 #ifdef HAVE_CAIRO
        cairo_surface_t *surface;
        cairo_t *cr;
-       int x, y;
        cairo_format_t cairo_format;
 
        /* we can ignore the order of R,G,B channels */
@@ -576,8 +575,8 @@ static void make_pwetty(void *data, unsigned int width, unsigned int height,
        cairo_surface_destroy(surface);
 
        cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
-       for (x = 0; x < width; x += 250)
-               for (y = 0; y < height; y += 250) {
+       for (unsigned x = 0; x < width; x += 250)
+               for (unsigned y = 0; y < height; y += 250) {
                        char buf[64];
 
                        cairo_move_to(cr, x, y - 20);