[Skiboot] [PATCH RFC 1/5] external/opal-prd: send socket response in the error path

[Neelesh Gupta]

The server should send the response in the case of error too,
so that the waiting client is not blocked forever.

Signed-off-by: Neelesh Gupta <neelegup at linux.vnet.ibm.com>
---
 external/opal-prd/opal-prd.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/external/opal-prd/opal-prd.c b/external/opal-prd/opal-prd.c
index 9f686c5..88b2350 100644
--- a/external/opal-prd/opal-prd.c
+++ b/external/opal-prd/opal-prd.c
@@ -1022,7 +1022,8 @@ static int handle_prd_control(struct opal_prd_ctx *ctx, int fd)
 	if (rc != sizeof(msg)) {
 		pr_log(LOG_WARNING, "CTRL: failed to receive "
 				"control message: %m");
-		return -1;
+		rc = -1;
+		goto out_send;
 	}
 
 	enabled = false;
@@ -1065,6 +1066,7 @@ static int handle_prd_control(struct opal_prd_ctx *ctx, int fd)
 				msg.type);
 	}
 
+out_send:
 	/* send a response */
 	msg.response = rc;
 	rc = send(fd, &msg, sizeof(msg), MSG_DONTWAIT | MSG_NOSIGNAL);