The notifier can be called before we have crtc. With the check we can avoid
NULL pointer dereference within tilcdc_crtc_update_clk().
Signed-off-by: Peter Ujfalusi <peter.ujfal...@ti.com>
---
drivers/gpu/drm/tilcdc/tilcdc_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 3046a4a4232d..85093123722d 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -169,7 +169,7 @@ static int cpufreq_transition(struct notifier_block *nb,
struct tilcdc_drm_private *priv = container_of(nb,
struct tilcdc_drm_private, freq_transition);
- if (val == CPUFREQ_POSTCHANGE)
+ if (val == CPUFREQ_POSTCHANGE && priv->crtc)
tilcdc_crtc_update_clk(priv->crtc);
return 0;
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
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