net/9p: set error to EREMOTEIO if trans->write returns zero
If trans->write returns 0, p9_write_work goes through the error path, but
sets the error code to zero.
This patch sets the error code to EREMOTEIO if trans->write returns zero
value.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
diff --git a/net/9p/mux.c b/net/9p/mux.c
index c3aa87b..acb0388 100644
--- a/net/9p/mux.c
+++ b/net/9p/mux.c
@@ -505,8 +505,12 @@
return;
}
- if (err <= 0)
+ if (err < 0)
goto error;
+ else if (err == 0) {
+ err = -EREMOTEIO;
+ goto error;
+ }
m->wpos += err;
if (m->wpos == m->wsize)