tree b92d71b333e30f90b4a91a4e4bea895f5489a6ae
parent 72638f598ec9f05a43fcb22dc1dd8dc34c43acc1
author Greg Kroah-Hartman <gregkh@suse.de> 1232495476 -0800
committer Greg Kroah-Hartman <gregkh@suse.de> 1232513529 -0800

sysfs: fix problems with binary files

Some sysfs binary files don't like having 0 passed to them as a size.
Fix this up at the root by just returning to the vfs if userspace asks
us for a zero sized buffer.

Thanks to Pavel Roskin for pointing this out.

Reported-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>