tiny-printf: Avoid printing NULL strings

Add a check for NULL strings to avoid printing junk to the console.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
master
Simon Glass 9 years ago
parent 9ab401ae0e
commit 8e31681c5a
  1. 6
      lib/tiny-printf.c

@ -108,8 +108,10 @@ int vprintf(const char *fmt, va_list va)
w--;
while (w-- > 0)
putc(lz ? '0' : ' ');
while ((ch = *p++))
putc(ch);
if (p) {
while ((ch = *p++))
putc(ch);
}
}
}

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