[-fixes,1/2] drm/vmwgfx: Return 0 when gmrid::get_node runs out of ID's

Commit Message

Thomas Hellstrom March 20, 2019, 6:59 a.m. UTC

From: Deepak Rawat <[e-mail]>

If it's not a system error and get_node implementation accommodate the
buffer object then it should return 0 with memm::mm_node set to NULL.

v2: Test for id != -ENOMEM instead of id == -ENOSPC.

Cc: <[e-mail]>
Fixes: 4eb085e42fde ("drm/vmwgfx: Convert to new IDA API")
Signed-off-by: Deepak Rawat <[e-mail]>
Reviewed-by: Thomas Hellstrom <[e-mail]>
Signed-off-by: Thomas Hellstrom <[e-mail]>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
index b93c558dd86e..7da752ca1c34 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
@@ -57,7 +57,7 @@  static int vmw_gmrid_man_get_node(struct ttm_mem_type_manager *man,
 
 	id = ida_alloc_max(&gman->gmr_ida, gman->max_gmr_ids - 1, GFP_KERNEL);
 	if (id < 0)
-		return id;
+		return (id != -ENOMEM ? 0 : id);
 
 	spin_lock(&gman->lock);