drm/atmel-hlcdc: check stride values in the first plane
authorStefan Agner <stefan@agner.ch>
Sun, 17 Jun 2018 08:48:22 +0000 (10:48 +0200)
committerBoris Brezillon <boris.brezillon@bootlin.com>
Sun, 17 Jun 2018 10:25:27 +0000 (12:25 +0200)
commit9fcf2b3c1c0276650fea537c71b513d27d929b05
tree29234af5d76156e2a872279368aedee36b71ff99
parentc7d6d511eb56495f065600c90336da0f0fe1b174
drm/atmel-hlcdc: check stride values in the first plane

The statement always evaluates to true since the struct fields
are arrays. This has shown up as a warning when compiling with
clang:
  warning: address of array 'desc->layout.xstride' will always
      evaluate to 'true' [-Wpointer-bool-conversion]

Check for values in the first plane instead.

Fixes: 1a396789f65a ("drm: add Atmel HLCDC Display Controller support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180617084826.31885-1-stefan@agner.ch
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c