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| author | Lukasz Majewski <l.majewski@samsung.com> | 2013-10-08 14:30:40 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-10-20 23:42:40 +0200 |
| commit | 7b412ab31fe7957eabbfa86c131679fb244d7079 (patch) | |
| tree | 5b39b7cc22a92e8ef80ca6cf536c811392bc2878 /drivers/usb/gadget | |
| parent | d42782631d59ea12251629bb827f725ef4dfddf6 (diff) | |
| download | u-boot-imx-7b412ab31fe7957eabbfa86c131679fb244d7079.zip u-boot-imx-7b412ab31fe7957eabbfa86c131679fb244d7079.tar.gz u-boot-imx-7b412ab31fe7957eabbfa86c131679fb244d7079.tar.bz2 | |
usb:g_dnl: Replace static usb_configuration structure with dynamically allocated one
When the usb_configuration structure is declared as static, it is very
hard to assure, that relevant fields (as e.g. config->interfaces[]) are
cleared out before new call to g_dnl related functions.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/g_dnl.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c index 40868c0..1aaf78f 100644 --- a/drivers/usb/gadget/g_dnl.c +++ b/drivers/usb/gadget/g_dnl.c @@ -79,6 +79,8 @@ static int g_dnl_unbind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; + free(cdev->config); + cdev->config = NULL; debug("%s: calling usb_gadget_disconnect for " "controller '%s'\n", shortname, gadget->name); usb_gadget_disconnect(gadget); @@ -105,16 +107,22 @@ static int g_dnl_do_config(struct usb_configuration *c) static int g_dnl_config_register(struct usb_composite_dev *cdev) { - static struct usb_configuration config = { - .label = "usb_dnload", - .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bConfigurationValue = CONFIGURATION_NUMBER, - .iConfiguration = STRING_USBDOWN, + struct usb_configuration *config; + const char *name = "usb_dnload"; - .bind = g_dnl_do_config, - }; + config = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*config)); + if (!config) + return -ENOMEM; - return usb_add_config(cdev, &config); + memset(config, 0, sizeof(*config)); + + config->label = name; + config->bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER; + config->bConfigurationValue = CONFIGURATION_NUMBER; + config->iConfiguration = STRING_USBDOWN; + config->bind = g_dnl_do_config; + + return usb_add_config(cdev, config); } __weak |