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drm/arm/malidp: fix a possible null pointer dereference
In malidp_mw_connector_reset, new memory is allocated with kzalloc, but no check is performed. In order to prevent null pointer dereferencing, ensure that mw_state is checked before calling __drm_atomic_helper_connector_reset. Fixes: 8cbc5ca ("drm: mali-dp: Add writeback connector") Signed-off-by: Huai-Yuan Liu <qq810974084@gmail.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240407063053.5481-1-qq810974084@gmail.com
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