drm/vmwgfx: Fix NULL pointer comparison

Replace direct comparisons to NULL i.e.
'x == NULL' with '!x'. As per coding standard.

Signed-off-by: Ravikant B Sharma <ravikant.s2@samsung.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
This commit is contained in:
Ravikant B Sharma 2016-11-08 17:30:31 +05:30 • committed by Sinclair Yeh
commit 1a4adb0563
11 changed files with 26 additions and 26 deletions