From bfd5df3c0cf65bdf10a3a00baff036cb096140f6 Mon Sep 17 00:00:00 2001
From: Chris Lund <docmax@gmail.com>
Date: Sat, 3 Jun 2006 13:58:19 -0700
Subject: [PATCH] [PATCH] USB: free allocated memory on io_edgeport startup
memory failure
While an Edgeport is allocating individual port structures, if kmalloc
returns NULL, the serial structure is freed and -ENOMEM, but the ports
allocated before the failure are not freed. This patch addresses that
condition.
Signed-off-by: Christopher Lund <docmax@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/serial/io_edgeport.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index c28f1f6902c30d..ed976ab56684ff 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -2730,7 +2730,7 @@ static int edge_startup (struct usb_serial *serial)
struct edgeport_serial *edge_serial;
struct edgeport_port *edge_port;
struct usb_device *dev;
- int i;
+ int i, j;
dev = serial->dev;
@@ -2794,6 +2794,10 @@ static int edge_startup (struct usb_serial *serial)
edge_port = kmalloc (sizeof(struct edgeport_port), GFP_KERNEL);
if (edge_port == NULL) {
dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__);
+ for (j = 0; j < i; ++j) {
+ kfree (usb_get_serial_port_data(serial->port[j]));
+ usb_set_serial_port_data(serial->port[j], NULL);
+ }
usb_set_serial_data(serial, NULL);
kfree(edge_serial);
return -ENOMEM;
--
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