strndup can fail. Check for it.

Fixes: 4855b39be ("serial: smh: Implement puts for DM") Signed-off-by: Sean Anderson sean.anderson@seco.com ---

drivers/serial/serial_semihosting.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/serial/serial_semihosting.c b/drivers/serial/serial_semihosting.c index 4328b3dac5..2561414e40 100644 --- a/drivers/serial/serial_semihosting.c +++ b/drivers/serial/serial_semihosting.c @@ -54,6 +54,9 @@ static ssize_t smh_serial_puts(struct udevice *dev, const char *s, size_t len) }

buf = strndup(s, len); + if (!buf) + return -ENOMEM; + smh_puts(buf); free(buf); return len;