diff options
| author | Joonyoung Shim <jy0922.shim@samsung.com> | 2016-08-11 14:02:28 +0900 |
|---|---|---|
| committer | Seung-Woo Kim <sw0312.kim@samsung.com> | 2016-12-14 13:52:25 +0900 |
| commit | 52b3332c830bdba63d0a3f349798666bc02bb091 (patch) | |
| tree | 29e2b261279748c5991a6f2e125e5ba63202b188 /drivers/gpu/drm | |
| parent | 2e3fa49e386b18689abe961b4ad0ad87792d5eed (diff) | |
drm/exynos: workaround to permit O_RDWR of dma-buf
It is possible for userspace to mmap() directly by the commit
bfe981a09528 ("drm: prime: Honour O_RDWR during prime-handle-to-fd")
but userspace using DRM_IOCTL_PRIME_HANDLE_TO_FD should be modified as
adding DRM_RDWR flag.
This patch permits O_RDWR of dma-buf as workaround until all tizen
kernel applies the commit bfe981a09528 ("drm: prime: Honour O_RDWR
during prime-handle-to-fd") userspace uses DRM_RDWR flag on
DRM_IOCTL_PRIME_HANDLE_TO_FD to mmap() dma-buf directly.
Change-Id: I29e86e98cece1fb84af35b2333c998525a94a381
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_dmabuf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index 73749226cac8..f5eb2ff84c95 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -237,7 +237,7 @@ struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev, exp_info.ops = &exynos_dmabuf_ops; exp_info.size = exynos_gem_obj->base.size; - exp_info.flags = flags; + exp_info.flags = flags | O_RDWR; exp_info.priv = obj; return dma_buf_export(&exp_info); |