pcu_sock: rename rc to fd

The variable rc holds the return code of accept(), which returns a file
descriptor on success. So lets call the variable "fd" to make this
clear.

Change-Id: Ibc359d941786b1d1d52b356e239a76a090b52c1f
---
M src/common/pcu_sock.c
1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/src/common/pcu_sock.c b/src/common/pcu_sock.c
index bdf5958..b0fd936 100644
--- a/src/common/pcu_sock.c
+++ b/src/common/pcu_sock.c
@@ -1160,11 +1160,11 @@
 	struct osmo_fd *conn_bfd = &state->conn_bfd;
 	struct sockaddr_un un_addr;
 	socklen_t len;
-	int rc;
+	int fd;
 
 	len = sizeof(un_addr);
-	rc = accept(bfd->fd, (struct sockaddr *) &un_addr, &len);
-	if (rc < 0) {
+	fd = accept(bfd->fd, (struct sockaddr *) &un_addr, &len);
+	if (fd < 0) {
 		LOGP(DPCU, LOGL_ERROR, "Failed to accept a new connection\n");
 		return -1;
 	}
@@ -1174,11 +1174,11 @@
 			"another active connection ?!?\n");
 		/* We already have one PCU connected, this is all we support */
 		state->listen_bfd.when &= ~OSMO_FD_READ;
-		close(rc);
+		close(fd);
 		return 0;
 	}
 
-	osmo_fd_setup(conn_bfd, rc, OSMO_FD_READ, pcu_sock_cb, state, 0);
+	osmo_fd_setup(conn_bfd, fd, OSMO_FD_READ, pcu_sock_cb, state, 0);
 
 	if (osmo_fd_register(conn_bfd) != 0) {
 		LOGP(DPCU, LOGL_ERROR, "Failed to register new connection "

