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| author | Chris Lund <docmax@gmail.com> | 2006-06-03 13:58:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 15:04:16 -0700 |
| commit | bfd5df3c0cf65bdf10a3a00baff036cb096140f6 (patch) | |
| tree | 3b7835253e0b1f03bc42e323fe3988ee407c0e11 /drivers/usb/serial/io_edgeport.c | |
| parent | 14f76cc7ab75b1c9db036dcd6b247e0dcc8952be (diff) | |
| download | lwn-bfd5df3c0cf65bdf10a3a00baff036cb096140f6.tar.gz lwn-bfd5df3c0cf65bdf10a3a00baff036cb096140f6.zip | |
[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>
Diffstat (limited to 'drivers/usb/serial/io_edgeport.c')
| -rw-r--r-- | drivers/usb/serial/io_edgeport.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index c28f1f6902c3..ed976ab56684 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; |