obmc-console: Fix bugprone-narrowing-conversions
For example:
```
/mnt/host/andrew/home/andrew/src/openbmc/obmc-console/build/../console-server.c:769:9: error: narrowing conversion from 'ssize_t' (aka 'long') to signed type 'int' is implementation-defined [bugprone-narrowing-conversions,-warnings-as-errors]
rc = read(console->tty_fd, buf, sizeof(buf));
^
```
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I67c158b411f1533ca3b5a62803116e95907e8c5b
diff --git a/ringbuffer.c b/ringbuffer.c
index 996dc49..5c485fc 100644
--- a/ringbuffer.c
+++ b/ringbuffer.c
@@ -125,7 +125,7 @@
size_t len)
{
enum ringbuffer_poll_ret prc;
- int force_len;
+ size_t force_len;
if (ringbuffer_space(rbc) >= len)
return 0;