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| author | Simon Glass <sjg@chromium.org> | 2015-12-29 05:22:46 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-01-20 19:06:22 -0700 |
| commit | 8e31681c5a5a2fd6bbdf751bcc900a4481e2fa29 (patch) | |
| tree | 342441dd9382f84f8e1fd52c089ba394b378a97f /lib | |
| parent | 9ab401ae0eb0386e300f24262c3b9178892769aa (diff) | |
| download | u-boot-imx-8e31681c5a5a2fd6bbdf751bcc900a4481e2fa29.zip u-boot-imx-8e31681c5a5a2fd6bbdf751bcc900a4481e2fa29.tar.gz u-boot-imx-8e31681c5a5a2fd6bbdf751bcc900a4481e2fa29.tar.bz2 | |
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')
| -rw-r--r-- | lib/tiny-printf.c | 6 |
1 files 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); + } } } |