diff --git a/src/gallium/winsys/r600/drm/r600_drm.c b/src/gallium/winsys/r600/drm/r600_drm.c
index fa2d77ed464..b5a4d928bf5 100644
--- a/src/gallium/winsys/r600/drm/r600_drm.c
+++ b/src/gallium/winsys/r600/drm/r600_drm.c
@@ -209,7 +209,7 @@ static int radeon_drm_get_tiling(struct radeon *radeon)
 static int radeon_get_clock_crystal_freq(struct radeon *radeon)
 {
 	struct drm_radeon_info info = {};
-	uint32_t clock_crystal_freq;
+	uint32_t clock_crystal_freq = 0;
 	int r;
 
 	info.request = RADEON_INFO_CLOCK_CRYSTAL_FREQ;
@@ -227,7 +227,7 @@ static int radeon_get_clock_crystal_freq(struct radeon *radeon)
 static int radeon_get_num_backends(struct radeon *radeon)
 {
 	struct drm_radeon_info info = {};
-	uint32_t num_backends;
+	uint32_t num_backends = 0;
 	int r;
 
 	info.request = RADEON_INFO_NUM_BACKENDS;