[git:v4l-utils/master] edid-decode: fix incorrect message

[Hans Verkuil]

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Subject: edid-decode: fix incorrect message
Author:  Hans Verkuil <hverk...@xs4all.nl>
Date:    Mon Feb 17 09:29:03 2025 +0100

If an InfoFrame has too many bytes, the message would say:

        AVI InfoFrame: There are -2 dummy bytes after the payload.

The calculation was wrong, leading to the negative number. Fix this.

Signed-off-by: Hans Verkuil <hverk...@xs4all.nl>

 utils/edid-decode/parse-if.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

---

http://git.linuxtv.org/cgit.cgi/v4l-utils.git/commit/?id=55f82dc073506400da9961dc5c95e5a9924f6bfb
diff --git a/utils/edid-decode/parse-if.cpp b/utils/edid-decode/parse-if.cpp
index e04306f75818..3144db88300f 100644
--- a/utils/edid-decode/parse-if.cpp
+++ b/utils/edid-decode/parse-if.cpp
@@ -25,7 +25,7 @@ int edid_state::parse_if_hdr(const unsigned char *x, unsigned 
size, unsigned cha
                return -1;
        }
        if (length + 3U < size) {
-               warn("There are %d dummy bytes after the payload.\n", length + 
3 - size);
+               warn("There are %d dummy bytes after the payload.\n", size - 
length - 3);
                if (!memchk(x + length + 3, length + 3 - size))
                        warn("There are non-zero dummy bytes after the 
payload.\n");
        }