Commit cf6f1d39 authored Jul 18, 2015 by Christian König Committed by Alex Deucher Aug 17, 2015

drm/amdgpu: fix signed overrun in amdgpu_ctx_get_fence



Otherwise the first 16 fences of a context will always signal immediately.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>

parent cdecb65b

drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -226,7 +226,7 @@ struct fence amdgpu_ctx_get_fence(struct amdgpu_ctx ctx,
		return ERR_PTR(-EINVAL);
		}

		if (seq < cring->sequence - AMDGPU_CTX_MAX_CS_PENDING) {
		if (seq + AMDGPU_CTX_MAX_CS_PENDING < cring->sequence) {
		spin_unlock(&ctx->ring_lock);
		return NULL;
		}