From 5bca4798971a1ea32c43994e35f63f1964b2ddf6 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 2 May 2025 08:46:51 -0600 Subject: [PATCH] expo: Adjust expo_poll() to avoid looping forever If the user does not quickly provide some input, exit so that other things can be done, such as searching for the next OS. Signed-off-by: Simon Glass --- boot/expo.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/boot/expo.c b/boot/expo.c index 7dbcac78c22..ee8ffaf8920 100644 --- a/boot/expo.c +++ b/boot/expo.c @@ -326,12 +326,14 @@ int expo_poll(struct expo *exp, struct expo_action *act) ichar = cli_ch_process(&exp->cch, 0); if (!ichar) { - while (!ichar && !tstc()) { + int i; + + for (i = 0; i < 10 && !ichar && !tstc(); i++) { schedule(); mdelay(2); ichar = cli_ch_process(&exp->cch, -ETIMEDOUT); } - if (!ichar) { + while (!ichar && tstc()) { ichar = getchar(); ichar = cli_ch_process(&exp->cch, ichar); } -- 2.47.2