diff options
| author | Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> | 2023-05-17 21:35:37 +0200 |
|---|---|---|
| committer | Jeffrey Hugo <quic_jhugo@quicinc.com> | 2023-05-23 17:48:19 +0200 |
| commit | 2e0904efc945ed5b04a9b251b9cefdd6754f5e15 (patch) | |
| tree | 72a5d82ba887f53c3947add8a6716a78f46eb410 /drivers/accel | |
| parent | accel/qaic: Validate user data before grabbing any lock (diff) | |
| download | linux-2e0904efc945ed5b04a9b251b9cefdd6754f5e15.tar.xz linux-2e0904efc945ed5b04a9b251b9cefdd6754f5e15.zip | |
accel/qaic: Validate if BO is sliced before slicing
QAIC_ATTACH_SLICE_BO attaches slicing configuration to a BO. Validate if
given BO is already sliced. An already sliced BO cannot be sliced again.
Fixes: ff13be830333 ("accel/qaic: Add datapath")
Signed-off-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517193540.14323-3-quic_jhugo@quicinc.com
Diffstat (limited to 'drivers/accel')
| -rw-r--r-- | drivers/accel/qaic/qaic_data.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c index 5f71d76dd3a6..e672dd244703 100644 --- a/drivers/accel/qaic/qaic_data.c +++ b/drivers/accel/qaic/qaic_data.c @@ -1001,6 +1001,11 @@ int qaic_attach_slice_bo_ioctl(struct drm_device *dev, void *data, struct drm_fi bo = to_qaic_bo(obj); + if (bo->sliced) { + ret = -EINVAL; + goto put_bo; + } + ret = qaic_prepare_bo(qdev, bo, &args->hdr); if (ret) goto put_bo; |