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| author | Changbin Du <changbin.du@intel.com> | 2016-12-27 13:24:52 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-01-09 11:05:56 +0800 |
| commit | a12010534d0984f91bc5bdcf9e27bd55e20d82da (patch) | |
| tree | 4d2c31974badb72ac329e9e6afc2e1c1264932d7 /drivers/gpu/drm/i915 | |
| parent | 3e70c5d6ea510e38f612d07fa0fd7487277b7087 (diff) | |
| download | op-kernel-dev-a12010534d0984f91bc5bdcf9e27bd55e20d82da.zip op-kernel-dev-a12010534d0984f91bc5bdcf9e27bd55e20d82da.tar.gz | |
drm/i915/gvt: fix error handing of tlb_control emulation
Return ealier for a invalid access, else it would false set
tlb flag for RCS.
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/handlers.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 052e571..e06d5f3 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1367,7 +1367,6 @@ static int ring_mode_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, static int gvt_reg_tlb_control_handler(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes) { - int rc = 0; unsigned int id = 0; write_vreg(vgpu, offset, p_data, bytes); @@ -1390,12 +1389,11 @@ static int gvt_reg_tlb_control_handler(struct intel_vgpu *vgpu, id = VECS; break; default: - rc = -EINVAL; - break; + return -EINVAL; } set_bit(id, (void *)vgpu->tlb_handle_pending); - return rc; + return 0; } static int ring_reset_ctl_write(struct intel_vgpu *vgpu, |
