firmware_class: make sure fw requests contain a name
authorKees Cook <keescook@chromium.org>
Thu, 18 Sep 2014 18:25:37 +0000 (11:25 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 24 Sep 2014 06:26:58 +0000 (23:26 -0700)
commit471b095dfe0d693a8d624cbc716d1ee4d74eb437
tree567180943a6b52e6029a30b6799520a341a990bb
parent41575335ed026339e07f265ede3a21e995bee8e6
firmware_class: make sure fw requests contain a name

An empty firmware request name will trigger warnings when building
device names. Make sure this is caught earlier and rejected.

The warning was visible via the test_firmware.ko module interface:

echo -ne "\x00" > /sys/devices/virtual/misc/test_firmware/trigger_request

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/base/firmware_class.c