From 4a88f73f14f6d6c94616538427e1235a6d0a5885 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 2 Jul 2013 09:18:39 +0200 Subject: [PATCH] drm/prime: fix up handle_to_fd ioctl return value In commit da34242e5e0638312130f5bd5d2d277afbc6f806 Author: YoungJun Cho Date: Wed Jun 26 10:21:42 2013 +0900 drm/prime: add return check for dma_buf_fd the failure case handling was fixed up. But in the case when we already had the buffer exported it changed the return value: Previously we've return 0 on success, now we return the fd. This ABI change has been caught by i-g-t/prime_self_import/with_one_bo. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66436 Cc: YoungJun Cho Cc: Seung-Woo Kim Cc: Kyungmin Park Tested-by: lu hua Signed-off-by: Daniel Vetter Reviewed-by: YoungJun Cho Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_prime.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 52709f2..1e0de41 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -347,10 +347,13 @@ int drm_gem_prime_handle_to_fd(struct drm_device *dev, out_have_obj: get_dma_buf(dmabuf); ret = dma_buf_fd(dmabuf, flags); - if (ret < 0) + if (ret < 0) { dma_buf_put(dmabuf); - else + } else { *prime_fd = ret; + ret = 0; + } + goto out; fail_rm_handle: -- 2.7.4