[PATCH] radeon: correct RADEON_GEM_WAIT_IDLE use

[Jonathan Gray]

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.

Problem noticed by and patch from Mark Kettenis.

Signed-off-by: Jonathan Gray <jsg at jsg.id.au>
---
 radeon/radeon_bo_gem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git radeon/radeon_bo_gem.c radeon/radeon_bo_gem.c
index fca0aaf..4ea405f 100644
--- radeon/radeon_bo_gem.c
+++ 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;
 }
-- 
1.8.2.3