drm/sti: avoid potential dereference of error pointers
commit 831214f77037de02afc287eae93ce97f218d8c04 upstream. The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure. Cc: stable@vger.kernel.org Fixes: dd86dc2f ("drm/sti: implement atomic_check for the planes") Signed-off-by:Ma Ke <make24@iscas.ac.cn> Link: https://patchwork.freedesktop.org/patch/msgid/20240913090412.2022848-1-make24@iscas.ac.cn Signed-off-by:
Alain Volmat <alain.volmat@foss.st.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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