Ignore requests to switch to RATP mode in input-only or output-only consoles. This actually also avoids segfaulting later on: #0 0x0000000000000000 in ?? () #1 0x000000000040b2a4 in console_send (r=<optimized out>, pkt=0x7fffffffd8ec, len=4) at common/ratp.c:102 #2 0x000000000042ab99 in ratp_behaviour_a (pkt=0x7ffff7298780, ri=0x7ffff72766d0) at lib/ratp.c:530 #3 ratp_state_machine (pkt=0x7ffff7298780, ri=0x7ffff72766d0) at lib/ratp.c:1384 #4 ratp_poll (ratp=0x7ffff7277ed8) at lib/ratp.c:1561 #5 0x000000000042b2ab in ratp_establish (ratp=ratp@entry=0x7ffff7277ed8, active=active@entry=false, timeout_ms=timeout_ms@entry=100) at lib/ratp.c:1645 #6 0x000000000040b888 in barebox_ratp (cdev=cdev@entry=0x7ffff7212bd0) at common/ratp.c:470 #7 0x00000000004046c3 in getc_raw () at common/console.c:416 ... Signed-off-by: Aleksander Morgado <aleksander@xxxxxxxxxxxxx> --- common/ratp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/common/ratp.c b/common/ratp.c index e879e2b3c..7be86d49a 100644 --- a/common/ratp.c +++ b/common/ratp.c @@ -443,6 +443,9 @@ int barebox_ratp(struct console_device *cdev) struct ratp_ctx *ctx; struct ratp *ratp; + if (!cdev->getc || !cdev->putc) + return -EINVAL; + if (ratp_command_ctx) { ctx = ratp_command_ctx; } else { -- 2.12.2 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox