cmd: setexpr: fix printf_str()
If vsnprintf() returns a negative number, (i >= remaining) will
possibly be true:
'i' is of type signed int and 'remaining' is of the unsigned type size_t.
The C language will convert i to an unsigned type before the comparison.
This can result in the wrong error type being indicated.
Checking for negative i should be done first.
Fixes: f4f8d8bb1abc ("cmd: setexpr: add format string handling")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
1 file changed