tree 16e9b70e3f2822f6aed2a3e387e5441803647f39
parent 9ff1beb1d19ffe2b26bf9cd2d33e6073d4f4b5fe
author Ravikant B Sharma <ravikant.s2@samsung.com> 1478606431 +0530
committer Sinclair Yeh <syeh@vmware.com> 1500360034 -0700

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>