[PATCH 1/3] tftp: do not forget to close the file in error case

[Sascha Hauer]

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 net/tftp.c |   48 ++++++++++++++++++++++--------------------------
 1 files changed, 22 insertions(+), 26 deletions(-)

diff --git a/net/tftp.c b/net/tftp.c
index b0bc7c5..38d16bc 100644
--- a/net/tftp.c
+++ b/net/tftp.c
@@ -206,31 +206,11 @@ static void tftp_handler(char *packet, unsigned len)
 	}
 }
 
-static int tftp_start(char *filename)
-{
-	char ip1[16];
-
-	tftp_filename = filename;
-
-	printf("TFTP from server %s; Filename: '%s'\nLoading: ",
-			ip_to_string(net_get_serverip(), ip1),
-			tftp_filename);
-
-	tftp_timer_start = get_time_ns();
-	tftp_state = STATE_RRQ;
-	tftp_block = 0;
-
-	tftp_con = net_udp_new(net_get_serverip(), TFTP_PORT, tftp_handler);
-	if (IS_ERR(tftp_con))
-		return PTR_ERR(tftp_con);
-
-	return tftp_send();
-}
-
 static int do_tftpb(struct command *cmdtp, int argc, char *argv[])
 {
 	char *localfile;
 	char *remotefile;
+	char ip1[16];
 
 	if (argc < 2)
 		return COMMAND_ERROR_USAGE;
@@ -248,9 +228,25 @@ static int do_tftpb(struct command *cmdtp, int argc, char *argv[])
 		return 1;
 	}
 
-	tftp_err = tftp_start(remotefile);
+	tftp_con = net_udp_new(net_get_serverip(), TFTP_PORT, tftp_handler);
+	if (IS_ERR(tftp_con)) {
+		tftp_err = PTR_ERR(tftp_con);
+		goto out_close;
+	}
+
+	tftp_filename = remotefile;
+
+	printf("TFTP from server %s; Filename: '%s'\nLoading: ",
+			ip_to_string(net_get_serverip(), ip1),
+			tftp_filename);
+
+	tftp_timer_start = get_time_ns();
+	tftp_state = STATE_RRQ;
+	tftp_block = 0;
+
+	tftp_err = tftp_send();
 	if (tftp_err)
-		goto out;
+		goto out_unreg;
 
 	while (tftp_state != STATE_DONE) {
 		if (ctrlc()) {
@@ -264,11 +260,11 @@ static int do_tftpb(struct command *cmdtp, int argc, char *argv[])
 			tftp_send();
 		}
 	}
-
+out_unreg:
 	net_unregister(tftp_con);
-
+out_close:
 	close(net_store_fd);
-out:
+
 	if (tftp_err) {
 		printf("\ntftp failed: %s\n", strerror(-tftp_err));
 		unlink(localfile);
-- 
1.7.1