On 08.07.21 19:30, Marek Behún wrote:
From: Pali Rohár <p...@kernel.org>
Call tcsetattr() only if the file descriptor is valid. It may be
invalidated by previous lines (if it is not a tty descriptor).
Signed-off-by: Pali Rohár <p...@kernel.org>
Reviewed-by: Marek Behún <marek.be...@nic.cz>
Reviewed-by: Stefan Roese <s...@denx.de>
Thanks,
Stefan
---
tools/kwboot.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/kwboot.c b/tools/kwboot.c
index 2edeb5a371..7e8bf21d37 100644
--- a/tools/kwboot.c
+++ b/tools/kwboot.c
@@ -564,7 +564,8 @@ kwboot_terminal(int tty)
}
} while (quit[s] != 0);
- tcsetattr(in, TCSANOW, &otio);
+ if (in >= 0)
+ tcsetattr(in, TCSANOW, &otio);
out:
return rc;
}
Viele Grüße,
Stefan
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