radeon: correct RADEON_GEM_WAIT_IDLE use

RADEON_GEM_WAIT_IDLE is declared DRM_IOW but libdrm
uses it with drmCommandWriteRead instead of drmCommandWrite
which leads to the ioctl being unmatched and returning an
error on at least OpenBSD.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>

diff --git a/radeon/radeon_bo_gem.c b/radeon/radeon_bo_gem.c
index fca0aaf..4ea405f 100644 (file)
--- a/radeon/radeon_bo_gem.c
+++ b/radeon/radeon_bo_gem.c
@@ -211,8 +211,8 @@ static int bo_wait(struct radeon_bo_int *boi)
     memset(&args, 0, sizeof(args));
     args.handle = boi->handle;
     do {
-        ret = drmCommandWriteRead(boi->bom->fd, DRM_RADEON_GEM_WAIT_IDLE,
-                                  &args, sizeof(args));
+        ret = drmCommandWrite(boi->bom->fd, DRM_RADEON_GEM_WAIT_IDLE,
+                             &args, sizeof(args));
     } while (ret == -EBUSY);
     return ret;
 }