If dma_fence_wait fails to wait for a supplied in-fence in
msm_ioctl_gem_submit, make sure we release that in-fence.
Also remove this dma_fence_put() from the 'out' label.
Signed-off-by: Robert Foss <[email protected]>
---
drivers/gpu/drm/msm/msm_gem_submit.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index a90aedd6883a..3e7704af5b24 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -411,7 +411,6 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
struct msm_file_private *ctx = file->driver_priv;
struct msm_gem_submit *submit;
struct msm_gpu *gpu = priv->gpu;
- struct dma_fence *in_fence = NULL;
struct sync_file *sync_file = NULL;
struct msm_gpu_submitqueue *queue;
struct msm_ringbuffer *ring;
@@ -444,7 +443,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
ring = gpu->rb[queue->prio];
if (args->flags & MSM_SUBMIT_FENCE_FD_IN) {
- in_fence = sync_file_get_fence(args->fence_fd);
+ struct dma_fence *in_fence = sync_file_get_fence(
+ args->fence_fd);
if (!in_fence)
return -EINVAL;
@@ -455,8 +455,10 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
*/
if (!dma_fence_match_context(in_fence, ring->fctx->context)) {
ret = dma_fence_wait(in_fence, true);
- if (ret)
+ if (ret) {
+ dma_fence_put(in_fence);
return ret;
+ }
}
}
@@ -583,8 +585,6 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
}
out:
- if (in_fence)
- dma_fence_put(in_fence);
submit_cleanup(submit);
if (ret)
msm_gem_submit_free(submit);
--
2.17.1
Quoting Robert Foss (2018-11-01 16:12:28)
> If dma_fence_wait fails to wait for a supplied in-fence in
> msm_ioctl_gem_submit, make sure we release that in-fence.
>
> Also remove this dma_fence_put() from the 'out' label.
>
> Signed-off-by: Robert Foss <[email protected]>
> ---
> drivers/gpu/drm/msm/msm_gem_submit.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
> index a90aedd6883a..3e7704af5b24 100644
> --- a/drivers/gpu/drm/msm/msm_gem_submit.c
> +++ b/drivers/gpu/drm/msm/msm_gem_submit.c
> @@ -411,7 +411,6 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
> struct msm_file_private *ctx = file->driver_priv;
> struct msm_gem_submit *submit;
> struct msm_gpu *gpu = priv->gpu;
> - struct dma_fence *in_fence = NULL;
> struct sync_file *sync_file = NULL;
> struct msm_gpu_submitqueue *queue;
> struct msm_ringbuffer *ring;
> @@ -444,7 +443,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
> ring = gpu->rb[queue->prio];
>
> if (args->flags & MSM_SUBMIT_FENCE_FD_IN) {
> - in_fence = sync_file_get_fence(args->fence_fd);
> + struct dma_fence *in_fence = sync_file_get_fence(
> + args->fence_fd);
>
> if (!in_fence)
> return -EINVAL;
> @@ -455,8 +455,10 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
> */
> if (!dma_fence_match_context(in_fence, ring->fctx->context)) {
> ret = dma_fence_wait(in_fence, true);
> - if (ret)
> + if (ret) {
> + dma_fence_put(in_fence);
> return ret;
> + }
> }
Careful, we need to keep the put for the normal path. Maybe,
if (args->flags & MSM_SUBMIT_FENCE_FD_IN) {
struct dma_fence *in_fence;
in_fence = sync_file_get_fence(args->fence_fd); // keep line breaks natural
if (!in_fence)
return -EINVAL;
ret = 0;
if (!dma_fence_match_match_context(in_fence, ring->fctx->context)
ret = dma_fence_wait(in_fence, true);
dma_fence_put(in_fence);
if (ret)
return ret;
}
Hey Chris,
On 2018-11-01 17:26, Chris Wilson wrote:
> Quoting Robert Foss (2018-11-01 16:12:28)
>> If dma_fence_wait fails to wait for a supplied in-fence in
>> msm_ioctl_gem_submit, make sure we release that in-fence.
>>
>> Also remove this dma_fence_put() from the 'out' label.
>>
>> Signed-off-by: Robert Foss <[email protected]>
>> ---
>> drivers/gpu/drm/msm/msm_gem_submit.c | 10 +++++-----
>> 1 file changed, 5 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
>> index a90aedd6883a..3e7704af5b24 100644
>> --- a/drivers/gpu/drm/msm/msm_gem_submit.c
>> +++ b/drivers/gpu/drm/msm/msm_gem_submit.c
>> @@ -411,7 +411,6 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
>> struct msm_file_private *ctx = file->driver_priv;
>> struct msm_gem_submit *submit;
>> struct msm_gpu *gpu = priv->gpu;
>> - struct dma_fence *in_fence = NULL;
>> struct sync_file *sync_file = NULL;
>> struct msm_gpu_submitqueue *queue;
>> struct msm_ringbuffer *ring;
>> @@ -444,7 +443,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
>> ring = gpu->rb[queue->prio];
>>
>> if (args->flags & MSM_SUBMIT_FENCE_FD_IN) {
>> - in_fence = sync_file_get_fence(args->fence_fd);
>> + struct dma_fence *in_fence = sync_file_get_fence(
>> + args->fence_fd);
>>
>> if (!in_fence)
>> return -EINVAL;
>> @@ -455,8 +455,10 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
>> */
>> if (!dma_fence_match_context(in_fence, ring->fctx->context)) {
>> ret = dma_fence_wait(in_fence, true);
>> - if (ret)
>> + if (ret) {
>> + dma_fence_put(in_fence);
>> return ret;
>> + }
>> }
>
> Careful, we need to keep the put for the normal path. Maybe,
Good catch, I'll send out a fixed version tomorrow.
>
> if (args->flags & MSM_SUBMIT_FENCE_FD_IN) {
> struct dma_fence *in_fence;
>
> in_fence = sync_file_get_fence(args->fence_fd); // keep line breaks natural
> if (!in_fence)
> return -EINVAL;
>
> ret = 0;
> if (!dma_fence_match_match_context(in_fence, ring->fctx->context)
> ret = dma_fence_wait(in_fence, true);
> dma_fence_put(in_fence);
> if (ret)
> return ret;
> }
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