• Jason Wessel's avatar
    kdb: Fix smatch warning on dbg_io_ops->is_console · 78724b8e
    Jason Wessel authored
    The Smatch tool warned that the change from commit b8adde8d
    (kdb: Avoid using dbg_io_ops until it is initialized) should
    add another null check later in the kdb_printf().
    
    It is worth noting that the second use of dbg_io_ops->is_console
    is protected by the KDB_PAGER state variable which would only
    get set when kdb is fully active and initialized.  If we
    ever encounter changes or defects in the KDB_PAGER state
    we do not want to crash the kernel in a kdb_printf/printk.
    
    CC: Tim Bird <tim.bird@am.sony.com>
    Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
    Signed-off-by: default avatarJason Wessel <jason.wessel@windriver.com>
    78724b8e
kdb_io.c 19.8 KB