staging: nvec: release sync write lock in error case
staging: nvec: release sync write lock in error case

We forgot to release the sync write lock in case the async write
fails. Found by rpiloose on IRC.

Signed-off-by: Marc Dietrich <42d20fa96f4ad82ed89346085b292a435bc3139a@gmx.de>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas