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drm/msm/mdp5: Fix mdp5_cfg_init error return

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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: 2e362e1772 (drm/msm/mdp5: introduce mdp5_cfg module)
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Jeffrey Hugo 2019-05-21 08:00:30 -07:00 • committed by Rob Clark
parent 03b7af1ef4
commit fc19cbb785
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c
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@ -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)