[PATCH 1/2] imx-drm: imx-ldb: fix kernel Oops in imx_ldb_unbind()

2014-08-19 Thread Shawn Guo
Unbinding imx-ldb driver on imx6q-sabresd board triggers a kernel Oops as below. $ echo 200.aips-bus\:ldb\@020e0008 > unbind [ 423.031003] Console: switching to colour dummy device 80x30 [ 423.052505] drm_kms_helper: drm: unregistered panic notifier [ 423.137082] Unable to handle kernel NUL

[PATCH 1/2] imx-drm: imx-ldb: fix kernel Oops in imx_ldb_unbind()

2014-08-19 Thread Philipp Zabel
Am Dienstag, den 19.08.2014, 17:49 +0800 schrieb Shawn Guo: > Unbinding imx-ldb driver on imx6q-sabresd board triggers a kernel Oops > as below. > > $ echo 200.aips-bus\:ldb\@020e0008 > unbind [...] > Fix the issue by checking if the LDB channel is actually created/valid > before calling into