Commit f4b0c286 authored Nov 11, 2016 by Du, Changbin Committed by Zhenyu Wang Nov 14, 2016

drm/i915/gvt: fix mem leakage in setup_vgpu_mmio for vgpu reset



Gvt gdrst handler handle_device_reset() invoke function
setup_vgpu_mmio() to reset mmio status. In this case,
the virtual mmio memory has been allocated already. The
new allocation just cause old mmio memory leakage.

Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

parent 0427f06a

drivers/gpu/drm/i915/gvt/vgpu.c

+7 −3

Original line number	Diff line number	Diff line
		@@ -46,9 +46,13 @@ int setup_vgpu_mmio(struct intel_vgpu *vgpu)
		struct intel_gvt *gvt = vgpu->gvt;
		const struct intel_gvt_device_info *info = &gvt->device_info;

		if (vgpu->mmio.vreg)
		memset(vgpu->mmio.vreg, 0, info->mmio_size * 2);
		else {
		vgpu->mmio.vreg = vzalloc(info->mmio_size * 2);
		if (!vgpu->mmio.vreg)
		return -ENOMEM;
		}

		vgpu->mmio.sreg = vgpu->mmio.vreg + info->mmio_size;