[Intel-gfx] [PATCH 4/8] xfree86: Keep trying to set interface on drm until it succeeds

[Bryce Harrington]

Signed-off-by: Bryce Harrington <bryce at canonical.com>
---
 hw/xfree86/os-support/linux/lnx_platform.c |   15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/hw/xfree86/os-support/linux/lnx_platform.c b/hw/xfree86/os-support/linux/lnx_platform.c
index 3ae2db1..c4d128e 100644
--- a/hw/xfree86/os-support/linux/lnx_platform.c
+++ b/hw/xfree86/os-support/linux/lnx_platform.c
@@ -31,11 +31,16 @@ get_drm_info(struct OdevAttributes *attribs, char *path)
     if (fd == -1)
         return FALSE;
 
-    sv.drm_di_major = 1;
-    sv.drm_di_minor = 4;
-    sv.drm_dd_major = -1;       /* Don't care */
-    sv.drm_dd_minor = -1;       /* Don't care */
-    err = drmSetInterfaceVersion(fd, &sv);
+    while (1) {
+	sv.drm_di_major = 1;
+	sv.drm_di_minor = 4;
+	sv.drm_dd_major = -1;       /* Don't care */
+	sv.drm_dd_minor = -1;       /* Don't care */
+	err = drmSetInterfaceVersion(fd, &sv);
+	if (!err)
+	    break;
+	usleep(1000);
+    }
     if (err) {
         ErrorF("setversion 1.4 failed: %s\n", strerror(-err));
 	goto out;
-- 
1.7.9.5