diff --git a/src/atombios_crtc.c b/src/atombios_crtc.c
index 7c628bf..f1f472d 100644
--- a/src/atombios_crtc.c
+++ b/src/atombios_crtc.c
@@ -232,7 +232,7 @@ atombios_crtc_set_pll(xf86CrtcPtr crtc, DisplayModePtr mode)
 	switch(minor) {
 	case 1:
 	case 2:
-	    spc2_ptr = &spc_param.sPCLKInput;
+	    spc2_ptr = (PIXEL_CLOCK_PARAMETERS_V2*)&spc_param.sPCLKInput;
 	    spc2_ptr->usPixelClock = sclock;
 	    spc2_ptr->usRefDiv = ref_div;
 	    spc2_ptr->usFbDiv = fb_div;
@@ -243,8 +243,7 @@ atombios_crtc_set_pll(xf86CrtcPtr crtc, DisplayModePtr mode)
 	    ptr = &spc_param;
 	    break;
 	case 3:
-	    spc3_ptr = &spc_param.sPCLKInput;
-
+	    spc3_ptr = (PIXEL_CLOCK_PARAMETERS_V3*)&spc_param.sPCLKInput;
 	    spc3_ptr->usPixelClock = sclock;
 	    spc3_ptr->usRefDiv = ref_div;
 	    spc3_ptr->usFbDiv = fb_div;
@@ -326,7 +325,6 @@ atombios_crtc_mode_set(xf86CrtcPtr crtc,
     xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
     unsigned char *RADEONMMIO = info->MMIO;
     unsigned long fb_location = crtc->scrn->fbOffset + info->fbLocation;
-    Bool           tilingOld   = info->tilingEnabled;
     int need_tv_timings = 0;
     int i, ret;
     SET_CRTC_TIMING_PARAMETERS_PS_ALLOCATION crtc_timing;
diff --git a/src/radeon_exa_render.c b/src/radeon_exa_render.c
index 4410cf5..0a51644 100644
--- a/src/radeon_exa_render.c
+++ b/src/radeon_exa_render.c
@@ -425,7 +425,7 @@ static Bool FUNC_NAME(R100PrepareComposite)(int op,
 					    PixmapPtr pDst)
 {
     RINFO_FROM_SCREEN(pDst->drawable.pScreen);
-    CARD32 dst_format, dst_offset, dst_pitch, colorpitch;
+    CARD32 dst_format = 0, dst_offset, dst_pitch, colorpitch;
     CARD32 pp_cntl, blendcntl, cblend, ablend;
     int pixel_shift;
     ACCEL_PREAMBLE();
@@ -707,7 +707,7 @@ static Bool FUNC_NAME(R200PrepareComposite)(int op, PicturePtr pSrcPicture,
 				PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 {
     RINFO_FROM_SCREEN(pDst->drawable.pScreen);
-    CARD32 dst_format, dst_offset, dst_pitch;
+    CARD32 dst_format = 0, dst_offset, dst_pitch;
     CARD32 pp_cntl, blendcntl, cblend, ablend, colorpitch;
     int pixel_shift;
     ACCEL_PREAMBLE();
@@ -1030,7 +1030,7 @@ static Bool FUNC_NAME(R300PrepareComposite)(int op, PicturePtr pSrcPicture,
 				PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
 {
     RINFO_FROM_SCREEN(pDst->drawable.pScreen);
-    CARD32 dst_format, dst_offset, dst_pitch;
+    CARD32 dst_format = 1, dst_offset, dst_pitch;
     CARD32 txenable, colorpitch;
     CARD32 blendcntl;
     int pixel_shift;