[media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish

gsc_m2m_job_finish() has to be called with the m2m context for the necessary
cleanup while resume. But currently gsc_m2m_job_finish() always passes m2m
context as NULL.
This patch preserves the context before making it null, for necessary cleanup.
Use gsc_m2m_opened() instead gsc_m2m_active() in gsc_resume().

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index 82d9f6ac12f3a271481e106df7f75017b3f962c1..33b5ffc8d66dfe136e2cd0df4129963b6c60ad79 100644 (file)
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1054,16 +1054,18 @@ static int gsc_m2m_suspend(struct gsc_dev *gsc)
 
 static int gsc_m2m_resume(struct gsc_dev *gsc)
 {
+       struct gsc_ctx *ctx;
        unsigned long flags;
 
        spin_lock_irqsave(&gsc->slock, flags);
        /* Clear for full H/W setup in first run after resume */
+       ctx = gsc->m2m.ctx;
        gsc->m2m.ctx = NULL;
        spin_unlock_irqrestore(&gsc->slock, flags);
 
        if (test_and_clear_bit(ST_M2M_SUSPENDED, &gsc->state))
-               gsc_m2m_job_finish(gsc->m2m.ctx,
-                                   VB2_BUF_STATE_ERROR);
+               gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+
        return 0;
 }
 
@@ -1204,7 +1206,7 @@ static int gsc_resume(struct device *dev)
        /* Do not resume if the device was idle before system suspend */
        spin_lock_irqsave(&gsc->slock, flags);
        if (!test_and_clear_bit(ST_SUSPEND, &gsc->state) ||
-           !gsc_m2m_active(gsc)) {
+           !gsc_m2m_opened(gsc)) {
                spin_unlock_irqrestore(&gsc->slock, flags);
                return 0;
        }