[U-Boot] [PATCH] tiny-printf: Correct the snprintf() implementation

This current code passes the variable arguments list to sprintf(). This is not correct. Fix it by calling _vprintf() directly.

This makes firefly-rk3288 boot again.

Fixes: 5c411d8 tiny-printf: Support snprintf() Signed-off-by: Simon Glass sjg@chromium.org ---

lib/tiny-printf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c index 5ea2555..3c65fc9 100644 --- a/lib/tiny-printf.c +++ b/lib/tiny-printf.c @@ -168,8 +168,10 @@ int snprintf(char *buf, size_t size, const char *fmt, ...) int ret;

va_start(va, fmt); - ret = sprintf(buf, fmt, va); + outstr = buf; + ret = _vprintf(fmt, va, putc_outstr); va_end(va); + *outstr = '\0';

return ret; }