From: Daniel Vetter Date: Thu, 13 Dec 2012 22:07:50 +0000 (+0100) Subject: drm/: Unified handling of unimplemented fb->create_handle X-Git-Tag: v3.9-rc1~83^2~38^2~28 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af26ef3b3978349cfbd864163a6ebb4906b733b5;p=pandora-kernel.git drm/: Unified handling of unimplemented fb->create_handle Some drivers don't have real ->create_handle callbacks. - cirrus/ast/mga200: Returns either 0 or -EINVAL. - udl: Didn't even bother with a callback, leading to a nice userspace-triggerable OOPS. - vmwgfx: This driver bothered with an implementation to return 0 as the handle (which is the canonical no-obj gem handle). All have in common that ->create_handle doesn't really make too much sense for them - that ioctl is used only for seamless fb takeover in the radeon/nouveau/i915 ddx drivers. So allow drivers to not implement this and return a consistent -ENODEV. Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed