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authorSimon Glass <sjg@chromium.org>2015-12-29 05:22:46 -0700
committerSimon Glass <sjg@chromium.org>2016-01-20 19:06:22 -0700
commit8e31681c5a5a2fd6bbdf751bcc900a4481e2fa29 (patch)
tree342441dd9382f84f8e1fd52c089ba394b378a97f /lib/tiny-printf.c
parent9ab401ae0eb0386e300f24262c3b9178892769aa (diff)
downloadtalos-obmc-uboot-8e31681c5a5a2fd6bbdf751bcc900a4481e2fa29.tar.gz
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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>
Diffstat (limited to 'lib/tiny-printf.c')
-rw-r--r--lib/tiny-printf.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c
index 403b134cd1..efe5c25a59 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);
+ }
}
}
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