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Commit 14d4031d authored by Axel Lin's avatar Axel Lin Committed by Chris Ball
Browse files

mmc: ushc: Return proper error code for ushc_probe() 



Improves error handling in the ushc driver.

Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
Acked-by: default avatarDavid Vrabel <david.vrabel@csr.com>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 25d5c699

drivers/mmc/host/ushc.c

+22 −8
Original line number Diff line number Diff line
@@ -425,7 +425,7 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id 
	struct usb_device *usb_dev = interface_to_usbdev(intf);

	struct mmc_host *mmc;

	struct ushc_data *ushc;

	int ret = -ENOMEM;

	int ret;



	mmc = mmc_alloc_host(sizeof(struct ushc_data), &intf->dev);

	if (mmc == NULL)
@@ -462,11 +462,15 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id 
	mmc->max_blk_count = 511;



	ushc->int_urb = usb_alloc_urb(0, GFP_KERNEL);

	if (ushc->int_urb == NULL)

	if (ushc->int_urb == NULL) {

		ret = -ENOMEM;

		goto err;

	}

	ushc->int_data = kzalloc(sizeof(struct ushc_int_data), GFP_KERNEL);

	if (ushc->int_data == NULL)

	if (ushc->int_data == NULL) {

		ret = -ENOMEM;

		goto err;

	}

	usb_fill_int_urb(ushc->int_urb, ushc->usb_dev,

			 usb_rcvintpipe(usb_dev,

					intf->cur_altsetting->endpoint[0].desc.bEndpointAddress),
@@ -475,11 +479,15 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id 
			 intf->cur_altsetting->endpoint[0].desc.bInterval);



	ushc->cbw_urb = usb_alloc_urb(0, GFP_KERNEL);

	if (ushc->cbw_urb == NULL)

	if (ushc->cbw_urb == NULL) {

		ret = -ENOMEM;

		goto err;

	}

	ushc->cbw = kzalloc(sizeof(struct ushc_cbw), GFP_KERNEL);

	if (ushc->cbw == NULL)

	if (ushc->cbw == NULL) {

		ret = -ENOMEM;

		goto err;

	}

	ushc->cbw->signature = USHC_CBW_SIGNATURE;



	usb_fill_bulk_urb(ushc->cbw_urb, ushc->usb_dev, usb_sndbulkpipe(usb_dev, 2),
@@ -487,15 +495,21 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id 
			  cbw_callback, ushc);



	ushc->data_urb = usb_alloc_urb(0, GFP_KERNEL);

	if (ushc->data_urb == NULL)

	if (ushc->data_urb == NULL) {

		ret = -ENOMEM;

		goto err;

	}



	ushc->csw_urb = usb_alloc_urb(0, GFP_KERNEL);

	if (ushc->csw_urb == NULL)

	if (ushc->csw_urb == NULL) {

		ret = -ENOMEM;

		goto err;

	}

	ushc->csw = kzalloc(sizeof(struct ushc_cbw), GFP_KERNEL);

	if (ushc->csw == NULL)

	if (ushc->csw == NULL) {

		ret = -ENOMEM;

		goto err;

	}

	usb_fill_bulk_urb(ushc->csw_urb, ushc->usb_dev, usb_rcvbulkpipe(usb_dev, 6),

			  ushc->csw, sizeof(struct ushc_csw),

			  csw_callback, ushc);