diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2018-10-06 03:46:09 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2018-10-06 03:46:08 -0700 |
| commit | 3b8fc0b7a3fcc809378d82dbf66b417e186af205 (patch) | |
| tree | 6e44c44ec85ddba4faf8cb108b04c47cb3fc4414 /drivers/gpu | |
| parent | 8f037f0b363b3907444a3a46b90e293284c6da51 (diff) | |
| parent | d9a879450e01a53b297876072dfc1e541181862b (diff) | |
Merge "Merge android-4.4.158 (f9e4134) into msm-4.4"
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c | 2 |
3 files changed, 16 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index eb1da83c9902..8cdd505784ed 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -125,6 +125,8 @@ struct kfd_process *kfd_get_process(const struct task_struct *thread) return ERR_PTR(-EINVAL); process = find_process(thread); + if (!process) + return ERR_PTR(-EINVAL); return process; } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index e7e581d6a8ff..1bfc4807ce5b 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -23,6 +23,10 @@ #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER #include "priv.h" +#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) +#include <asm/dma-iommu.h> +#endif + static int nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) { @@ -85,6 +89,15 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev) unsigned long pgsize_bitmap; int ret; +#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) + if (dev->archdata.mapping) { + struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); + + arm_iommu_detach_device(dev); + arm_iommu_release_mapping(mapping); + } +#endif + if (!tdev->func->iommu_bit) return; diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c index a188a3959f1a..6ad827b93ae1 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c @@ -823,7 +823,7 @@ static void s6e8aa0_read_mtp_id(struct s6e8aa0 *ctx) int ret, i; ret = s6e8aa0_dcs_read(ctx, 0xd1, id, ARRAY_SIZE(id)); - if (ret < ARRAY_SIZE(id) || id[0] == 0x00) { + if (ret < 0 || ret < ARRAY_SIZE(id) || id[0] == 0x00) { dev_err(ctx->dev, "read id failed\n"); ctx->error = -EIO; return; |