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| author | Christian König <christian.koenig@amd.com> | 2015-07-18 19:20:05 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-08-17 16:50:15 -0400 |
| commit | cf6f1d39496e9b5dd62953f8dca9f995d80ab4ff (patch) | |
| tree | 2e5f5e548bac01b290c8d3bcd6c539875d401e7e /drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | |
| parent | cdecb65b4eaba1d45abbfe34b724664f65623531 (diff) | |
| download | linux-cf6f1d39496e9b5dd62953f8dca9f995d80ab4ff.tar.gz linux-cf6f1d39496e9b5dd62953f8dca9f995d80ab4ff.tar.bz2 linux-cf6f1d39496e9b5dd62953f8dca9f995d80ab4ff.zip | |
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index 859a4841075e..144edc97c6fe 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -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; } |