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| author | Ajay Kumar <ajaykumar.rs@samsung.com> | 2015-01-11 19:57:07 +0300 |
|---|---|---|
| committer | Inki Dae <daeinki@gmail.com> | 2015-01-25 15:28:09 +0300 |
| commit | efa75bcdad59fc796152a4c73bb65ae2ab7ce035 (patch) | |
| tree | 51673f9624d419e3d7a5c415a3cbcb704032a2ff /drivers/gpu/drm/exynos/exynos_drm_fimd.c | |
| parent | adf5691c333620560fb90f2c551a42da8ed14f15 (diff) | |
| download | linux-efa75bcdad59fc796152a4c73bb65ae2ab7ce035.tar.xz | |
drm/exynos: fimd: check error status for drm_iommu_attach_device
check error status for drm_iommu_attach_device() and make sure
it propagates till the caller.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Inki Dae <daeinki@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_fimd.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_fimd.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index d54ca07658c9..682806ef4d33 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -296,12 +296,19 @@ static int fimd_ctx_initialize(struct fimd_context *ctx, /* attach this sub driver to iommu mapping if supported. */ if (is_drm_iommu_supported(ctx->drm_dev)) { + int ret; + /* * If any channel is already active, iommu will throw * a PAGE FAULT when enabled. So clear any channel if enabled. */ fimd_clear_channel(ctx->crtc); - drm_iommu_attach_device(ctx->drm_dev, ctx->dev); + ret = drm_iommu_attach_device(ctx->drm_dev, ctx->dev); + if (ret) { + DRM_ERROR("drm_iommu_attach failed.\n"); + return ret; + } + } return 0; @@ -1056,6 +1063,7 @@ static int fimd_bind(struct device *dev, struct device *master, void *data) { struct fimd_context *ctx = dev_get_drvdata(dev); struct drm_device *drm_dev = data; + int ret; ctx->crtc = exynos_drm_crtc_create(drm_dev, ctx->pipe, EXYNOS_DISPLAY_TYPE_LCD, @@ -1063,7 +1071,12 @@ static int fimd_bind(struct device *dev, struct device *master, void *data) if (IS_ERR(ctx->crtc)) return PTR_ERR(ctx->crtc); - fimd_ctx_initialize(ctx, drm_dev); + ret = fimd_ctx_initialize(ctx, drm_dev); + if (ret) { + DRM_ERROR("fimd_ctx_initialize failed.\n"); + return ret; + } + if (ctx->display) exynos_drm_create_enc_conn(drm_dev, ctx->display); |