nvidia-331 331.38-0ubuntu7: nvidia-331 kernel module failed to build when compiling linux-3.15.2 from kernel.org

The kernel I was compiling was linux-3.15.2 from kernel.org

Compilation seemed succesfully.

On 'sudo make modules_install install' command it stopped after
 "run-parts: executing /etc/kernel/postinst.d/dkms 3.15.2 /boot/vmlinuz-3.15.2" output line and said:
"
Error! Bad return status for module build on kernel: 3.15.2 (x86_64)
Consult /var/lib/dkms/nvidia-331/331.38/build/make.log for more information.
"

The end of the make.log file is:

"
  cc -Wp,-MD,sound/pci/.snd-als300.mod.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/include -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/include -I/home/fola/src/linux-3.15.2/arch/x86/include -Iarch/x86/include/generated -Iinclude -I/home/fola/src/linux-3.15.2/arch/x86/include/uapi -Iarch/x86/include/generated/uapi -I/home/fola/src/linux-3.15.2/include/uapi -Iinclude/generated/uapi -include /home/fola/src/linux-3.15.2/include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mno-mmx -mno-sse -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -DCONFIG_X86_X32_ABI -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_CRC32=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -Wframe-larger-than=1024 -fno-stack-protector -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes -DCC_HAVE_ASM_GOTO -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(snd_als300.mod)" -D"KBUILD_MODNAME=KBUILD_STR(snd_als300)" -DMODULE -c -o sound/pci/snd-als300.mod.o sound/pci/snd-als300.mod.c
  /usr/bin/ld.bfd -r -m elf_x86_64 -T /home/fola/src/linux-3.15.2/scripts/module-common.lds --build-id -o sound/pci/snd-als300.ko sound/pci/snd-als300.o sound/pci/snd-als300.mod.o
  cc -Wp,-MD,sound/.soundcore.mod.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/include -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/include -I/home/fola/src/linux-3.15.2/arch/x86/include -Iarch/x86/include/generated -Iinclude -I/home/fola/src/linux-3.15.2/arch/x86/include/uapi -Iarch/x86/include/generated/uapi -I/home/fola/src/linux-3.15.2/include/uapi -Iinclude/generated/uapi -include /home/fola/src/linux-3.15.2/include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mno-mmx -mno-sse -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -DCONFIG_X86_X32_ABI -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_CRC32=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -Wframe-larger-than=1024 -fno-stack-protector -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes -DCC_HAVE_ASM_GOTO -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(soundcore.mod)" -D"KBUILD_MODNAME=KBUILD_STR(soundcore)" -DMODULE -c -o sound/soundcore.mod.o sound/soundcore.mod.c
  /usr/bin/ld.bfd -r -m elf_x86_64 -T /home/fola/src/linux-3.15.2/scripts/module-common.lds --build-id -o sound/soundcore.ko sound/soundcore.o sound/soundcore.mod.o
make -f /home/fola/src/linux-3.15.2/scripts/Makefile.fwinst obj=firmware __fw_modbuild
NVIDIA: left KBUILD.
 nvidia.ko failed to build!
make[2]: *** [nvidia.ko] Error 1
"

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: nvidia-331 331.38-0ubuntu7
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
DKMSKernelVersion: 3.15.2
Date: Mon Jun 30 01:27:48 2014
InstallationDate: Installed on 2014-04-25 (65 days ago)
InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
PackageVersion: 331.38-0ubuntu7
SourcePackage: nvidia-graphics-drivers-331
Title: nvidia-331 331.38-0ubuntu7: nvidia-331 kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)