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8c5eaca012
kcalloc returns NULL on failure. Hence check for the return value and exit on error to avoid NULL pointer dereference. Fixes the following smatch errors: drivers/gpu/drm/drm_fb_helper.c:1271 drm_setup_crtcs() error: potential null dereference 'modes'. (kcalloc returns null) drivers/gpu/drm/drm_fb_helper.c:1272 drm_setup_crtcs() error: potential null dereference 'crtcs'. (kcalloc returns null) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dave Airlie <airlied@redhat.com>