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(parent: 077e264) | patch
dsp56k: prevent a harmless underflow
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 13 Jul 2016 10:11:19 +0000 (13:11 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 14 Jul 2016 07:21:53 +0000 (16:21 +0900)
commit241903641111803807c90016866d88d7ef8c9347
tree72e0cca7c435845b29b019965cb27b49173369f7tree | snapshot (tar.gz zip)
parent077e2642fbe2274e1b7b9d7c71da6cd3f69f21fdcommit | diff
dsp56k: prevent a harmless underflow

There is a mistake here where we don't allow "len" to be zero but we
allow negative lengths.  It's basically harmless in this case, but the
underflow makes my static checker complain.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/char/dsp56k.c diff | blob | blame | history