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tiny-printf: Correct the snprintf() implementation

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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: abeb272 ("tiny-printf: Support snprintf()")
Reviewed-by: Stefan Roese <sr@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-06-08 20:55:15 -06:00 committed by Tom Rini
parent 9c2f9b2da6
commit 3191d84080
1 changed files with 3 additions and 1 deletions
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4
lib/tiny-printf.c
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@ -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;
}