mmc: ushc: Return proper error code for ushc_probe()
Improves error handling in the ushc driver. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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25d5c699f9
commit
14d4031d21
1 changed files with 22 additions and 8 deletions
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@ -425,7 +425,7 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id
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struct usb_device *usb_dev = interface_to_usbdev(intf);
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struct mmc_host *mmc;
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struct ushc_data *ushc;
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int ret = -ENOMEM;
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int ret;
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mmc = mmc_alloc_host(sizeof(struct ushc_data), &intf->dev);
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if (mmc == NULL)
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@ -462,11 +462,15 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id
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mmc->max_blk_count = 511;
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ushc->int_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (ushc->int_urb == NULL)
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if (ushc->int_urb == NULL) {
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ret = -ENOMEM;
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goto err;
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}
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ushc->int_data = kzalloc(sizeof(struct ushc_int_data), GFP_KERNEL);
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if (ushc->int_data == NULL)
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if (ushc->int_data == NULL) {
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ret = -ENOMEM;
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goto err;
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}
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usb_fill_int_urb(ushc->int_urb, ushc->usb_dev,
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usb_rcvintpipe(usb_dev,
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intf->cur_altsetting->endpoint[0].desc.bEndpointAddress),
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@ -475,11 +479,15 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id
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intf->cur_altsetting->endpoint[0].desc.bInterval);
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ushc->cbw_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (ushc->cbw_urb == NULL)
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if (ushc->cbw_urb == NULL) {
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ret = -ENOMEM;
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goto err;
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}
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ushc->cbw = kzalloc(sizeof(struct ushc_cbw), GFP_KERNEL);
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if (ushc->cbw == NULL)
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if (ushc->cbw == NULL) {
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ret = -ENOMEM;
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goto err;
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}
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ushc->cbw->signature = USHC_CBW_SIGNATURE;
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usb_fill_bulk_urb(ushc->cbw_urb, ushc->usb_dev, usb_sndbulkpipe(usb_dev, 2),
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@ -487,15 +495,21 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id
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cbw_callback, ushc);
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ushc->data_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (ushc->data_urb == NULL)
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if (ushc->data_urb == NULL) {
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ret = -ENOMEM;
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goto err;
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}
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ushc->csw_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (ushc->csw_urb == NULL)
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if (ushc->csw_urb == NULL) {
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ret = -ENOMEM;
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goto err;
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}
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ushc->csw = kzalloc(sizeof(struct ushc_cbw), GFP_KERNEL);
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if (ushc->csw == NULL)
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if (ushc->csw == NULL) {
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ret = -ENOMEM;
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goto err;
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}
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usb_fill_bulk_urb(ushc->csw_urb, ushc->usb_dev, usb_rcvbulkpipe(usb_dev, 6),
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ushc->csw, sizeof(struct ushc_csw),
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csw_callback, ushc);
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