tree 85a4dd7406b44c8e95c4618c5cb90ae92987cd85
parent a461e11e7b8ca2705889bcf9582f6a8f84884bd2
author Amit Shah <amit.shah@redhat.com> 1284628389 +0530
committer Rusty Russell <rusty@rustcorp.com.au> 1287645244 +1030

virtio: console: Disable lseek(2) for port file operations

The ports are char devices; do not have seeking capabilities.  Calling
nonseekable_open() from the fops_open() call and setting the llseek fops
pointer to no_llseek ensures an lseek() call from userspace returns
-ESPIPE.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>