Re: [PATCH] drm/amd/display: Add null pointer check for get_first_active_display()

2025-05-26 Thread Alex Hung
Reviewed-by: Alex Hung On 5/25/25 20:37, Wentao Liang wrote: The function mod_hdcp_hdcp1_enable_encryption() calls the function get_first_active_display(), but does not check its return value. The return value is a null pointer if the display list is empty. This will lead to a null pointer dere

[PATCH] drm/amd/display: Add null pointer check for get_first_active_display()

2025-05-26 Thread Wentao Liang
The function mod_hdcp_hdcp1_enable_encryption() calls the function get_first_active_display(), but does not check its return value. The return value is a null pointer if the display list is empty. This will lead to a null pointer dereference in mod_hdcp_hdcp2_enable_encryption(). Add a null pointe