drm: mxsfb: drm_dev_alloc() returns error pointers
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 13 Dec 2016 12:23:32 +0000 (15:23 +0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 13 Dec 2016 21:24:20 +0000 (22:24 +0100)
commite89e50ac35d9126907a436dabe70f9a8311b9981
treea64ba36abd4a1f0922b63220e3705a71b6968b5e
parent010f5b9f0d44f73943e0b63d7f4362af227ae2ea
drm: mxsfb: drm_dev_alloc() returns error pointers

We should be checking for IS_ERR() instead of NULL because
drm_dev_alloc() returns error pointers.

Fixes: 45d59d704080 ("drm: Add new driver for MXSFB controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161213122332.GA7519@elgon.mountain
drivers/gpu/drm/mxsfb/mxsfb_drv.c