diff options
| author | Kang Chen <void0red@gmail.com> | 2023-02-25 07:11:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-09 17:33:14 +0300 |
| commit | 5aacc9d540cea790fe4419b61bfa8a1218a4474a (patch) | |
| tree | cfd217490cbb8c43ec6c9d170c4ccfab44be766a | |
| parent | 2ae4e0dea3b0c7b380821bac05e03a71da1f452f (diff) | |
| download | linux-5aacc9d540cea790fe4419b61bfa8a1218a4474a.tar.xz | |
usb: gadget: udc: add return value check of kzalloc in mv_udc_probe
Even an 8-byte kzalloc will fail when we don't have enough memory,
so we need a nullptr check and do the cleanup when it fails.
Reported-by: eriri <1527030098@qq.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217081
Signed-off-by: Kang Chen <void0red@gmail.com>
Link: https://lore.kernel.org/r/20230225041149.136-1-void0red@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/gadget/udc/mv_udc_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c index b397f3a848cf..6dd6d52de3af 100644 --- a/drivers/usb/gadget/udc/mv_udc_core.c +++ b/drivers/usb/gadget/udc/mv_udc_core.c @@ -2230,6 +2230,10 @@ static int mv_udc_probe(struct platform_device *pdev) /* allocate a small amount of memory to get valid address */ udc->status_req->req.buf = kzalloc(8, GFP_KERNEL); + if (!udc->status_req->req.buf) { + retval = -ENOMEM; + goto err_destroy_dma; + } udc->status_req->req.dma = DMA_ADDR_INVALID; udc->resume_state = USB_STATE_NOTATTACHED; |