mesa: Assign _mesa_lookup_parameter_index return value to GLint.

diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c
index 2f029b0..f22492e 100644 (file)
--- a/src/mesa/shader/prog_parameter.c
+++ b/src/mesa/shader/prog_parameter.c
@@ -500,7 +500,7 @@ GLfloat *
 _mesa_lookup_parameter_value(const struct gl_program_parameter_list *paramList,
                              GLsizei nameLen, const char *name)
 {
-   GLuint i = _mesa_lookup_parameter_index(paramList, nameLen, name);
+   GLint i = _mesa_lookup_parameter_index(paramList, nameLen, name);
    if (i < 0)
       return NULL;
    else