When copying the name of a stdio device we must ensure that it is NUL
terminated before passing it to strcmp() to avoid a buffer overrun.
Truncating the name field leads to failure to deregister a stdio device.
When copying we must ensure that the name field sizes match.
Addresses-Coverity-ID: 350462 String not null terminated
Fixes: 5294e97832 ("stdio: extend "name" to 32 symbols")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
6da11cc81e