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usb: gadget: composite: Fix return value in case of error

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In 'composite_os_desc_req_prepare', if one of the memory allocations fail,
0 will be returned, which means success.
We should return -ENOMEM instead.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Christophe JAILLET 2016-07-16 08:34:33 +02:00 committed by Felipe Balbi
parent bd610c5aa9
commit 3887db5c2b
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/gadget/composite.c
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@ -2126,14 +2126,14 @@ int composite_os_desc_req_prepare(struct usb_composite_dev *cdev,
cdev->os_desc_req = usb_ep_alloc_request(ep0, GFP_KERNEL);
if (!cdev->os_desc_req) {
ret = PTR_ERR(cdev->os_desc_req);
ret = -ENOMEM;
goto end;
}
/* OS feature descriptor length <= 4kB */
cdev->os_desc_req->buf = kmalloc(4096, GFP_KERNEL);
if (!cdev->os_desc_req->buf) {
ret = PTR_ERR(cdev->os_desc_req->buf);
ret = -ENOMEM;
kfree(cdev->os_desc_req);
goto end;
}