Fix gcc -Wextra warnings

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Ian Romanick <idr@freedesktop.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/tests/vbltest/vbltest.c b/tests/vbltest/vbltest.c
index cdc1ef6b..6e13c57c 100644
--- a/tests/vbltest/vbltest.c
+++ b/tests/vbltest/vbltest.c
@@ -104,7 +104,8 @@ static void usage(char *name)
 
 int main(int argc, char **argv)
 {
-        int i, c, fd, ret;
+        unsigned i;
+        int c, fd, ret;
         char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "exynos", "omapdrm", "tilcdc", "msm", "tegra" };
         drmVBlank vbl;
         drmEventContext evctx;