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path: root/drivers/gpu/drm/i915/i915_perf.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_perf.c')
-rw-r--r--drivers/gpu/drm/i915/i915_perf.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 112ba5f2ce90..e62ad69606f6 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -603,7 +603,6 @@ static int append_oa_sample(struct i915_perf_stream *stream,
{
int report_size = stream->oa_buffer.format_size;
struct drm_i915_perf_record_header header;
- u32 sample_flags = stream->sample_flags;
header.type = DRM_I915_PERF_RECORD_SAMPLE;
header.pad = 0;
@@ -617,10 +616,8 @@ static int append_oa_sample(struct i915_perf_stream *stream,
return -EFAULT;
buf += sizeof(header);
- if (sample_flags & SAMPLE_OA_REPORT) {
- if (copy_to_user(buf, report, report_size))
- return -EFAULT;
- }
+ if (copy_to_user(buf, report, report_size))
+ return -EFAULT;
(*offset) += header.size;
@@ -2682,7 +2679,7 @@ static void i915_oa_stream_enable(struct i915_perf_stream *stream)
stream->perf->ops.oa_enable(stream);
- if (stream->periodic)
+ if (stream->sample_flags & SAMPLE_OA_REPORT)
hrtimer_start(&stream->poll_check_timer,
ns_to_ktime(stream->poll_oa_period),
HRTIMER_MODE_REL_PINNED);
@@ -2745,7 +2742,7 @@ static void i915_oa_stream_disable(struct i915_perf_stream *stream)
{
stream->perf->ops.oa_disable(stream);
- if (stream->periodic)
+ if (stream->sample_flags & SAMPLE_OA_REPORT)
hrtimer_cancel(&stream->poll_check_timer);
}
@@ -3028,7 +3025,7 @@ static ssize_t i915_perf_read(struct file *file,
* disabled stream as an error. In particular it might otherwise lead
* to a deadlock for blocking file descriptors...
*/
- if (!stream->enabled)
+ if (!stream->enabled || !(stream->sample_flags & SAMPLE_OA_REPORT))
return -EIO;
if (!(file->f_flags & O_NONBLOCK)) {