nvidia-304 304.125-0ubuntu1: nvidia-304 kernel module failed to build [error: ‘struct file’ has no member named ‘f_dentry’]

[Yoda]

Error during upgrade to kernel 3.19.

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: nvidia-304 304.125-0ubuntu1
Uname: Linux 3.18.0-031800-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.16.1-0ubuntu2
Architecture: amd64
DKMSKernelVersion: 3.19.0-7-generic
Date: Sun Mar 1 11:09:40 2015
DuplicateSignature: dkms:nvidia-304:304.125-0ubuntu1:/var/lib/dkms/nvidia-304/304.125/build/nv.c:2029:30: error: ‘struct file’ has no member named ‘f_dentry’
InstallationDate: Installed on 2014-12-15 (75 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
PackageVersion: 304.125-0ubuntu1
SourcePackage: nvidia-graphics-drivers-304
Title: nvidia-304 304.125-0ubuntu1: nvidia-304 kernel module failed to build
UpgradeStatus: Upgraded to vivid on 2015-02-23 (5 days ago)
modified.conffile..etc.modprobe.d.nvidia.304.hybrid.conf: [deleted]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[RussianNeuroMancer (russianneuromancer)]

Workaround in bugreport #1427107

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1409190, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.