We should not call 'fotg210_ep_free_request()' with NULL as a 2nd parameter.
Depending of the layout of 'struct fotg210_request', this could lead to an
un-expected behavior.
So, if 'fotg210_ep_alloc_request()' fails, we should return directly.
This also gives the opportunity to further simplify code.
(In fact, this change should be a no-op, because 'req' is the first field of
'struct fotg210_request'. So passing NULL would result in 'free(NULL)' in
'fotg210_ep_free_request()'. Anyway avoiding the goto is cleaner.)
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
drivers/usb/gadget/udc/fotg210-udc.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index 99a18b14c8c2..03adfcb58548 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -1075,8 +1075,7 @@ static int fotg210_udc_probe(struct platform_device *pdev)
{
struct resource *res, *ires;
struct fotg210_udc *fotg210 = NULL;
- int ret = 0;
- int i;
+ int ret, i;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
@@ -1090,8 +1089,6 @@ static int fotg210_udc_probe(struct platform_device *pdev)
return -ENODEV;
}
- ret = -ENOMEM;
-
/* initialize udc */
fotg210 = devm_kzalloc(&pdev->dev, sizeof(struct fotg210_udc),
GFP_KERNEL);
@@ -1155,8 +1152,8 @@ static int fotg210_udc_probe(struct platform_device *pdev)
fotg210->ep0_req = fotg210_ep_alloc_request(&fotg210->ep[0]->ep,
GFP_KERNEL);
- if (fotg210->ep0_req == NULL)
- goto err_req;
+ if (!fotg210->ep0_req)
+ return -ENOMEM;
fotg210_init(fotg210);
--
2.14.1
--
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