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| author |   Colin Ian King <colin.king@canonical.com> | 2021-03-03 00:27:59 +0000 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-03-03 10:51:37 -0500 |
| commit | 8dbc2ccac5a65c5b57e3070e36a3dc97c7970d96 (patch) | |
| tree | cee2cdc0b428ecfd209d93ec6fee69958fb3bc54 /drivers/gpu/drm/amd/pm/amdgpu_pm.c | |
| parent | drm/amdgpu: correct DRM_ERROR for kvmalloc_array (diff) | |
| download | wireguard-linux-8dbc2ccac5a65c5b57e3070e36a3dc97c7970d96.tar.xz wireguard-linux-8dbc2ccac5a65c5b57e3070e36a3dc97c7970d96.zip | |
drm/radeon: fix copy of uninitialized variable back to userspace
Currently the ioctl command RADEON_INFO_SI_BACKEND_ENABLED_MASK can
copy back uninitialised data in value_tmp that pointer *value points
to. This can occur when rdev->family is less than CHIP_BONAIRE and
less than CHIP_TAHITI. Fix this by adding in a missing -EINVAL
so that no invalid value is copied back to userspace.
Addresses-Coverity: ("Uninitialized scalar variable)
Cc: stable@vger.kernel.org # 3.13+
Fixes: 439a1cfffe2c ("drm/radeon: expose render backend mask to the userspace")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/amdgpu_pm.c')
0 files changed, 0 insertions, 0 deletions