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path: root/drivers/usb/gadget/udc
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Diffstat (limited to 'drivers/usb/gadget/udc')
-rw-r--r--drivers/usb/gadget/udc/lpc32xx_udc.c11
-rw-r--r--drivers/usb/gadget/udc/m66592-udc.c2
-rw-r--r--drivers/usb/gadget/udc/mv_udc_core.c3
-rw-r--r--drivers/usb/gadget/udc/s3c2410_udc.c4
4 files changed, 9 insertions, 11 deletions
diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index ea43cb74a6f2..c9590949e4f0 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -1662,17 +1662,17 @@ static int lpc32xx_ep_enable(struct usb_ep *_ep,
const struct usb_endpoint_descriptor *desc)
{
struct lpc32xx_ep *ep = container_of(_ep, struct lpc32xx_ep, ep);
- struct lpc32xx_udc *udc = ep->udc;
+ struct lpc32xx_udc *udc;
u16 maxpacket;
u32 tmp;
unsigned long flags;
/* Verify EP data */
if ((!_ep) || (!ep) || (!desc) ||
- (desc->bDescriptorType != USB_DT_ENDPOINT)) {
- dev_dbg(udc->dev, "bad ep or descriptor\n");
+ (desc->bDescriptorType != USB_DT_ENDPOINT))
return -EINVAL;
- }
+
+ udc = ep->udc;
maxpacket = usb_endpoint_maxp(desc);
if ((maxpacket == 0) || (maxpacket > ep->maxpacket)) {
dev_dbg(udc->dev, "bad ep descriptor's packet size\n");
@@ -1920,7 +1920,7 @@ static int lpc32xx_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
static int lpc32xx_ep_set_halt(struct usb_ep *_ep, int value)
{
struct lpc32xx_ep *ep = container_of(_ep, struct lpc32xx_ep, ep);
- struct lpc32xx_udc *udc = ep->udc;
+ struct lpc32xx_udc *udc;
unsigned long flags;
if ((!ep) || (ep->hwep_num <= 1))
@@ -1930,6 +1930,7 @@ static int lpc32xx_ep_set_halt(struct usb_ep *_ep, int value)
if (ep->is_in)
return -EAGAIN;
+ udc = ep->udc;
spin_lock_irqsave(&udc->lock, flags);
if (value == 1) {
diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index b1cfa96cc88f..db95eab8b432 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1684,7 +1684,7 @@ static int m66592_probe(struct platform_device *pdev)
err_add_udc:
m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
-
+ m66592->ep0_req = NULL;
clean_up3:
if (m66592->pdata->on_chip) {
clk_disable(m66592->clk);
diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
index 81b6229c7805..4f480059f851 100644
--- a/drivers/usb/gadget/udc/mv_udc_core.c
+++ b/drivers/usb/gadget/udc/mv_udc_core.c
@@ -2322,7 +2322,8 @@ static int mv_udc_probe(struct platform_device *pdev)
return 0;
err_create_workqueue:
- destroy_workqueue(udc->qwork);
+ if (udc->qwork)
+ destroy_workqueue(udc->qwork);
err_destroy_dma:
dma_pool_destroy(udc->dtd_pool);
err_free_dma:
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index eb3571ee59e3..08153a48704b 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -269,10 +269,6 @@ static void s3c2410_udc_done(struct s3c2410_ep *ep,
static void s3c2410_udc_nuke(struct s3c2410_udc *udc,
struct s3c2410_ep *ep, int status)
{
- /* Sanity check */
- if (&ep->queue == NULL)
- return;
-
while (!list_empty(&ep->queue)) {
struct s3c2410_request *req;
req = list_entry(ep->queue.next, struct s3c2410_request,