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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2016-12-02 11:50:26 +0100 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2016-12-04 12:32:04 +0100 |
commit | 011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e (patch) | |
tree | be53d4f11f7625508ee3aea9889e854ab5b5f263 /target/linux/brcm2708/patches-4.4/0536-drm-vc4-Fix-a-couple-error-codes-in-vc4_cl_lookup_bo.patch | |
parent | 4257f6548b9480cdb436115b63d5c134c5e91303 (diff) | |
download | mtk-20170518-011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e.zip mtk-20170518-011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e.tar.gz mtk-20170518-011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e.tar.bz2 |
brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0536-drm-vc4-Fix-a-couple-error-codes-in-vc4_cl_lookup_bo.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.4/0536-drm-vc4-Fix-a-couple-error-codes-in-vc4_cl_lookup_bo.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0536-drm-vc4-Fix-a-couple-error-codes-in-vc4_cl_lookup_bo.patch b/target/linux/brcm2708/patches-4.4/0536-drm-vc4-Fix-a-couple-error-codes-in-vc4_cl_lookup_bo.patch new file mode 100644 index 0000000..8f09d5c --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0536-drm-vc4-Fix-a-couple-error-codes-in-vc4_cl_lookup_bo.patch @@ -0,0 +1,39 @@ +From 4c41f90e1f84c4a5c080eca03b07a0116297593b Mon Sep 17 00:00:00 2001 +From: Dan Carpenter <dan.carpenter@oracle.com> +Date: Thu, 13 Oct 2016 11:54:31 +0300 +Subject: [PATCH] drm/vc4: Fix a couple error codes in vc4_cl_lookup_bos() + +If the allocation fails the current code returns success. If +copy_from_user() fails it returns the number of bytes remaining instead +of -EFAULT. + +Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.") +Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> +Reviewed-by: Eric Anholt <eric@anholt.net> +(cherry picked from commit b2cdeb19f16ad984eb5bb9193f793d05a8101511) +--- + drivers/gpu/drm/vc4/vc4_gem.c | 9 +++++---- + 1 file changed, 5 insertions(+), 4 deletions(-) + +--- a/drivers/gpu/drm/vc4/vc4_gem.c ++++ b/drivers/gpu/drm/vc4/vc4_gem.c +@@ -560,14 +560,15 @@ vc4_cl_lookup_bos(struct drm_device *dev + + handles = drm_malloc_ab(exec->bo_count, sizeof(uint32_t)); + if (!handles) { ++ ret = -ENOMEM; + DRM_ERROR("Failed to allocate incoming GEM handles\n"); + goto fail; + } + +- ret = copy_from_user(handles, +- (void __user *)(uintptr_t)args->bo_handles, +- exec->bo_count * sizeof(uint32_t)); +- if (ret) { ++ if (copy_from_user(handles, ++ (void __user *)(uintptr_t)args->bo_handles, ++ exec->bo_count * sizeof(uint32_t))) { ++ ret = -EFAULT; + DRM_ERROR("Failed to copy in GEM handles\n"); + goto fail; + } |