The dev_get_platdata() function may return NULL, which may cause null pointer deference, and most other callsites of dev_get_platdata() do Null check. Add Null check for return value of dev_get_platdata(). Found by our static analysis tool. Signed-off-by: Chenyuan Mi <cymi20@xxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_lpe_audio.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_lpe_audio.c b/drivers/gpu/drm/i915/display/intel_lpe_audio.c index 5863763de530..a1655ddbe910 100644 --- a/drivers/gpu/drm/i915/display/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/display/intel_lpe_audio.c @@ -336,6 +336,9 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, return; pdata = dev_get_platdata(&dev_priv->display.audio.lpe.platdev->dev); + if (!pdata) + return; + ppdata = &pdata->port[port - PORT_B]; spin_lock_irqsave(&pdata->lpe_audio_slock, irqflags); -- 2.17.1
