radeon/winsys: fix get info ioctl error checking

Signed-off-by: Jerome Glisse <jglisse@redhat.com>

diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index 442bd2a..f337411 100644 (file)
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -138,9 +138,11 @@ static boolean radeon_get_drm_value(int fd, unsigned request,
     info.request = request;
 
     retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
-    if (retval && errname) {
-        fprintf(stderr, "radeon: Failed to get %s, error number %d\n",
-                errname, retval);
+    if (retval) {
+        if (errname) {
+            fprintf(stderr, "radeon: Failed to get %s, error number %d\n",
+                    errname, retval);
+        }
         return FALSE;
     }
     return TRUE;