From: Patrick Delaunay <patrick.delaunay@st.com>
Date: Fri, 3 Aug 2018 11:38:45 +0000 (+0200)
Subject: cli: handle getch error
X-Git-Tag: v2018.11-rc1~218
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=555e378ca7658e817986e18e4a3f214a7fac60ad;p=oweals%2Fu-boot.git

cli: handle getch error

Handle getch error (when getch return 0x0) to avoid display issue
in the console.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
---

diff --git a/common/cli_readline.c b/common/cli_readline.c
index 60a232b065..99b631720e 100644
--- a/common/cli_readline.c
+++ b/common/cli_readline.c
@@ -273,6 +273,10 @@ static int cread_line(const char *const prompt, char *buf, unsigned int *len,
 
 		ichar = getcmd_getch();
 
+		/* ichar=0x0 when error occurs in U-Boot getc */
+		if (!ichar)
+			continue;
+
 		if ((ichar == '\n') || (ichar == '\r')) {
 			putc('\n');
 			break;