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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>
scm-imx_v2016.03_4.1.15_2.0.0_ga
Simon Glass 5 years ago
parent
commit
8e31681c5a
1 changed files with 4 additions and 2 deletions
  1. +4
    -2
      lib/tiny-printf.c

+ 4
- 2
lib/tiny-printf.c View File

@ -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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