diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/inode.c | 51 |
1 files changed, 29 insertions, 22 deletions
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 57bf24810f9..aef0722b8f1 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1038,7 +1038,7 @@ scan: /* ep0 can't deliver events when STATE_SETUP */ for (i = 0; i < n; i++) { if (dev->event [i].type == GADGETFS_SETUP) { - len = n = i + 1; + len = i + 1; len *= sizeof (struct usb_gadgetfs_event); n = 0; break; @@ -1586,13 +1586,13 @@ gadgetfs_create_file (struct super_block *sb, char const *name, static int activate_ep_files (struct dev_data *dev) { struct usb_ep *ep; + struct ep_data *data; gadget_for_each_ep (ep, dev->gadget) { - struct ep_data *data; data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) - goto enomem; + goto enomem0; data->state = STATE_EP_DISABLED; init_MUTEX (&data->lock); init_waitqueue_head (&data->wait); @@ -1607,21 +1607,23 @@ static int activate_ep_files (struct dev_data *dev) data->req = usb_ep_alloc_request (ep, GFP_KERNEL); if (!data->req) - goto enomem; + goto enomem1; data->inode = gadgetfs_create_file (dev->sb, data->name, data, &ep_config_operations, &data->dentry); - if (!data->inode) { - usb_ep_free_request(ep, data->req); - kfree (data); - goto enomem; - } + if (!data->inode) + goto enomem2; list_add_tail (&data->epfiles, &dev->epfiles); } return 0; -enomem: +enomem2: + usb_ep_free_request (ep, data->req); +enomem1: + put_dev (dev); + kfree (data); +enomem0: DBG (dev, "%s enomem\n", __FUNCTION__); destroy_ep_files (dev); return -ENOMEM; @@ -1792,7 +1794,7 @@ static struct usb_gadget_driver probe_driver = { * * After initialization, the device stays active for as long as that * $CHIP file is open. Events may then be read from that descriptor, - * such configuration notifications. More complex drivers will handle + * such as configuration notifications. More complex drivers will handle * some control requests in user space. */ @@ -2032,12 +2034,10 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent) NULL, &simple_dir_operations, S_IFDIR | S_IRUGO | S_IXUGO); if (!inode) - return -ENOMEM; + goto enomem0; inode->i_op = &simple_dir_inode_operations; - if (!(d = d_alloc_root (inode))) { - iput (inode); - return -ENOMEM; - } + if (!(d = d_alloc_root (inode))) + goto enomem1; sb->s_root = d; /* the ep0 file is named after the controller we expect; @@ -2045,21 +2045,28 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent) */ dev = dev_new (); if (!dev) - return -ENOMEM; + goto enomem2; dev->sb = sb; - if (!(inode = gadgetfs_create_file (sb, CHIP, + if (!gadgetfs_create_file (sb, CHIP, dev, &dev_init_operations, - &dev->dentry))) { - put_dev(dev); - return -ENOMEM; - } + &dev->dentry)) + goto enomem3; /* other endpoint files are available after hardware setup, * from binding to a controller. */ the_device = dev; return 0; + +enomem3: + put_dev (dev); +enomem2: + dput (d); +enomem1: + iput (inode); +enomem0: + return -ENOMEM; } /* "mount -t gadgetfs path /dev/gadget" ends up here */ |