drm/msm/dsi: Fix potential NULL pointer dereference in msm_dsi_modeset_init
authorGustavo A. R. Silva <garsilva@embeddedor.com>
Fri, 2 Feb 2018 12:42:33 +0000 (06:42 -0600)
committerRob Clark <robdclark@gmail.com>
Mon, 19 Mar 2018 10:33:34 +0000 (06:33 -0400)
commit52749d601a6055da3352842575408fcba6f1da46
tree883b3ead98a4bae0e37c2b1b3ade00d17cb95d2a
parent5abc7dd7b5a0f51a6c7d9cb3ce72b910ba3cef7b
drm/msm/dsi: Fix potential NULL pointer dereference in msm_dsi_modeset_init

_dev_ is being dereferenced before it is null checked, hence there
is a potential null pointer dereference.

Fix this by moving the pointer dereference after _dev_ has been
null checked.

Fixes: d4e7f38d70ef ("drm/msm/dsi: check msm_dsi and dsi pointers before use")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
drivers/gpu/drm/msm/dsi/dsi.c