commit bff469f4167fdabfe15294f375577d7eadbaa1bb upstream. This patch protects the common buffer access inside the dib0700 in order to manage concurrent access. This protection is done using mutex. Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Florian Mickler <florian@mickler.org> Signed-off-by: Javier Marcet <javier@marcet.info> Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr> Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr> [mchehab@redhat.com: dprint requires 3 arguments. Replaced by dib_info] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>