From: Jeffrey Hugo Date: Tue, 21 May 2019 15:00:30 +0000 (-0700) Subject: drm/msm/mdp5: Fix mdp5_cfg_init error return X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=fc19cbb785d7bbd1a1af26229b5240a3ab332744;p=openwrt%2Fstaging%2Fblogic.git drm/msm/mdp5: Fix mdp5_cfg_init error return If mdp5_cfg_init fails because of an unknown major version, a null pointer dereference occurs. This is because the caller of init expects error pointers, but init returns NULL on error. Fix this by returning the expected values on error. Fixes: 2e362e1772b8 (drm/msm/mdp5: introduce mdp5_cfg module) Signed-off-by: Jeffrey Hugo Reviewed-by: Bjorn Andersson Signed-off-by: Rob Clark --- diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c index ea8f7d7daf7f..52e23780fce1 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c @@ -721,7 +721,7 @@ fail: if (cfg_handler) mdp5_cfg_destroy(cfg_handler); - return NULL; + return ERR_PTR(ret); } static struct mdp5_cfg_platform *mdp5_get_config(struct platform_device *dev)