CVS commit: src/sys/kern

["Kamil Rytarowski" <kamil%netbsd.org@localhost>]

Module Name:    src
Committed By:   kamil
Date:           Tue Feb  5 13:50:10 UTC 2019

Modified Files:
        src/sys/kern: vfs_syscalls.c

Log Message:
The panic for fopen(NULL, ... is back, fix it

Restore the original behavior before merging the compat refactoring branch.

Now:
 - no compat_10 -> perform pathbuf_copyin() and report EFAULT
 - compat_10 and error -> report error
 - compat_10 and success -> return file descriptor for "."

PR kern/53948


To generate a diff of this commit:
cvs rdiff -u -r1.523 -r1.524 src/sys/kern/vfs_syscalls.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.