summaryrefslogtreecommitdiff
path: root/drivers/input/joystick
diff options
context:
space:
mode:
authorAxel Lin <axel.lin@gmail.com>2010-11-11 21:39:11 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-11-11 22:02:11 -0800
commit49cc69b6789b57d2d8ed78843c4219525b433b58 (patch)
tree1b831f622c242f64bb89621b2e7663c2ca2a184b /drivers/input/joystick
parent5fdbe44d033d059cc56c2803e6b4dbd8cb4e5e39 (diff)
Input: xpad - return proper error in error path
In current implementation, xpad_probe return 0 when usb_alloc_urb failed for xpad->bulk_out and kzalloc failed for xpad->bdata. This patch removes the initialization for error variable, assign the error code at the place the error happens instead. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/joystick')
-rw-r--r--drivers/input/joystick/xpad.c33
1 files changed, 23 insertions, 10 deletions
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index f9fb7fa10af3..39c0265ca156 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -543,21 +543,25 @@ exit:
static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
{
struct usb_endpoint_descriptor *ep_irq_out;
- int error = -ENOMEM;
+ int error;
if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX)
return 0;
xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
GFP_KERNEL, &xpad->odata_dma);
- if (!xpad->odata)
+ if (!xpad->odata) {
+ error = -ENOMEM;
goto fail1;
+ }
mutex_init(&xpad->odata_mutex);
xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
- if (!xpad->irq_out)
+ if (!xpad->irq_out) {
+ error = -ENOMEM;
goto fail2;
+ }
ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
usb_fill_int_urb(xpad->irq_out, xpad->udev,
@@ -789,8 +793,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
struct usb_xpad *xpad;
struct input_dev *input_dev;
struct usb_endpoint_descriptor *ep_irq_in;
- int i;
- int error = -ENOMEM;
+ int i, error;
for (i = 0; xpad_device[i].idVendor; i++) {
if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
@@ -800,17 +803,23 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
input_dev = input_allocate_device();
- if (!xpad || !input_dev)
+ if (!xpad || !input_dev) {
+ error = -ENOMEM;
goto fail1;
+ }
xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
GFP_KERNEL, &xpad->idata_dma);
- if (!xpad->idata)
+ if (!xpad->idata) {
+ error = -ENOMEM;
goto fail1;
+ }
xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
- if (!xpad->irq_in)
+ if (!xpad->irq_in) {
+ error = -ENOMEM;
goto fail2;
+ }
xpad->udev = udev;
xpad->mapping = xpad_device[i].mapping;
@@ -929,12 +938,16 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
* controller when it shows up
*/
xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
- if(!xpad->bulk_out)
+ if (!xpad->bulk_out) {
+ error = -ENOMEM;
goto fail5;
+ }
xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
- if(!xpad->bdata)
+ if (!xpad->bdata) {
+ error = -ENOMEM;
goto fail6;
+ }
xpad->bdata[2] = 0x08;
switch (intf->cur_altsetting->desc.bInterfaceNumber) {