change Data ptr from GLbyte to GLubyte to silence warnings

diff --git a/src/mesa/drivers/dri/sis/sis_context.h b/src/mesa/drivers/dri/sis/sis_context.h
index 49b73c4fa28cee9bef4c07a295d28e81a65e1c5c..320bf58c173532699afed99f7be43964c7e4d8f2 100644 (file)
--- a/src/mesa/drivers/dri/sis/sis_context.h
+++ b/src/mesa/drivers/dri/sis/sis_context.h
@@ -115,7 +115,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SIS_MAX_TEXTURE_LEVELS         11
 
 typedef struct {
-   GLbyte *Data;               /* Pointer to texture in offscreen */
+   GLubyte *Data;              /* Pointer to texture in offscreen */
    GLuint memType;             /* VIDEO_TYPE or AGP_TYPE */
    void *handle;               /* Handle for sisFree*() */
    GLuint pitch;