usb: gadget: fusb300_udc: free irq on the error path in fusb300_probe()

When request_irq(ires1->start) failed in w5300_hw_probe(), irq
ires->start has not been freed, and on the clean_up3 error path,
we also need to free ires1->start irq, fix it.

In addition, We should add free_irq in fusb300_remove(), and give
the lables a proper name so that they can be understood easily,
so add free_irq in fusb300_remove(), and update clean_up3 to
err_alloc_request.

Fixes: 0fe6f1d1f612 ("usb: udc: add Faraday fusb300 driver")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20221123014121.1989721-1-cuigaosheng1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
index 9af8b41..5e9e8e5 100644 (file)
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/drivers/usb/gadget/udc/fusb300_udc.c
@@ -1347,6 +1347,7 @@ static int fusb300_remove(struct platform_device *pdev)
        usb_del_gadget_udc(&fusb300->gadget);
        iounmap(fusb300->reg);
        free_irq(platform_get_irq(pdev, 0), fusb300);
+       free_irq(platform_get_irq(pdev, 1), fusb300);
 
        fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
        for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
@@ -1432,7 +1433,7 @@ static int fusb300_probe(struct platform_device *pdev)
                        IRQF_SHARED, udc_name, fusb300);
        if (ret < 0) {
                pr_err("request_irq1 error (%d)\n", ret);
-               goto clean_up;
+               goto err_request_irq1;
        }
 
        INIT_LIST_HEAD(&fusb300->gadget.ep_list);
@@ -1471,7 +1472,7 @@ static int fusb300_probe(struct platform_device *pdev)
                                GFP_KERNEL);
        if (fusb300->ep0_req == NULL) {
                ret = -ENOMEM;
-               goto clean_up3;
+               goto err_alloc_request;
        }
 
        init_controller(fusb300);
@@ -1486,7 +1487,10 @@ static int fusb300_probe(struct platform_device *pdev)
 err_add_udc:
        fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
 
-clean_up3:
+err_alloc_request:
+       free_irq(ires1->start, fusb300);
+
+err_request_irq1:
        free_irq(ires->start, fusb300);
 
 clean_up: