media: exynos-gsc: fix pm_runtime_get_sync() usage count
[ Upstream commit 59087b66ea6730c130c57d23bd9fd139b78c1ba5 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a8
("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
As a bonus, as pm_runtime_get_sync() always return 0 on
success, the logic can be simplified.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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parent
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@ -56,10 +56,8 @@ static void __gsc_m2m_job_abort(struct gsc_ctx *ctx)
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static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
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{
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struct gsc_ctx *ctx = q->drv_priv;
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int ret;
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ret = pm_runtime_get_sync(&ctx->gsc_dev->pdev->dev);
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return ret > 0 ? 0 : ret;
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return pm_runtime_resume_and_get(&ctx->gsc_dev->pdev->dev);
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}
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static void __gsc_m2m_cleanup_queue(struct gsc_ctx *ctx)
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