common: hash: zero end the string instead of the pointer
if algo->digest_size is zero nothing is set in the str_output
buffer. An attempt is made to zero end the buffer, but the
pointer to the buffer is set to zero instead. I am unaware if
it causes any actual problems, but solves the following warning:
common/hash.c:217:13: warning: expression which evaluates to zero treated as
a null pointer constant of type 'char *' [-Wnon-literal-null-conversion]
str_ptr = '\0';
^~~~
cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
diff --git a/common/hash.c b/common/hash.c
index 41a4a28..237bd04 100644
--- a/common/hash.c
+++ b/common/hash.c
@@ -214,7 +214,7 @@
sprintf(str_ptr, "%02x", sum[i]);
str_ptr += 2;
}
- str_ptr = '\0';
+ *str_ptr = '\0';
setenv(dest, str_output);
} else {
ulong addr;