From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Roese <sr@denx.de>
Date: Tue, 29 Dec 2015 14:23:41 +0100
Subject: [U-Boot] [PATCH 04/10] tiny-printf: Avoid printing NULL strings
In-Reply-To: <1451391772-6203-5-git-send-email-sjg@chromium.org>
References: <1451391772-6203-1-git-send-email-sjg@chromium.org>
 <1451391772-6203-5-git-send-email-sjg@chromium.org>
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To: u-boot@lists.denx.de

On 29.12.2015 13:22, Simon Glass wrote:
> Add a check for NULL strings to avoid printing junk to the console.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
>   lib/tiny-printf.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c
> index 403b134..efe5c25 100644
> --- a/lib/tiny-printf.c
> +++ b/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);
> +			}
>   		}
>   	}
>
>

Reviewed-by: Stefan Roese <sr@denx.de>

Thanks,
Stefan