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(parent: d75a781) | patch
virtio: console: Disable lseek(2) for port file operations
authorAmit Shah <amit.shah@redhat.com>
Thu, 16 Sep 2010 09:13:09 +0000 (14:43 +0530)
committerRusty Russell <rusty@rustcorp.com.au>
Thu, 21 Oct 2010 07:14:04 +0000 (17:44 +1030)
commit07e88887f39ae9e17ee79377b96563a08eca7c74
tree85a4dd7406b44c8e95c4618c5cb90ae92987cd85tree | snapshot
parentd75a7816f3560344c0c933fcf73a92766321cac2commit | diff
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>
drivers/char/virtio_console.c diff | blob | history
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