fs: Convert show_fdinfo functions to void

seq_printf functions shouldn't really check the return value.
Checking seq_has_overflowed() occasionally is used instead.

Update vfs documentation.

Link: http://lkml.kernel.org/p/e37e6e7b76acbdcc3bb4ab2a57c8f8ca1ae11b9a.1412031505.git.joe@perches.com

Cc: David S. Miller <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Joe Perches <[email protected]>
[ did a few clean ups ]
Signed-off-by: Steven Rostedt <[email protected]>
10 files changed