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Stefan Richter authored
The - raw1394 (/dev/raw1394), - video1394 (/dev/video1394/*), - dv1394 (/dev/dv1394/*) character device file ABIs do not make any use of lseek(), pread(), or pwrite(). Therefore use nonseekable_open() and, redundantly, set file_operations.llseek to no_llseek to remove any doubt whether the BKL- grabbing default_llseek handler is used. Although all this is legacy code which should be left in peace until it is eventually removed (as it is superseded by firewire-core's <linux/firewire-cdev.h> ABI), this change seems still worth doing to further minimize the presence of BKL usage in the kernel. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de>
7cfe21aa