drm/etnaviv: check for errors when enabling clocks

clk_prepare_enable() may fail, so we should better check for its return
value and propagate it in the case of failure.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
This commit is contained in:
Fabio Estevam 2016-08-21 19:32:13 -03:00 • committed by Lucas Stach
commit 9e59eea66f