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path: root/drivers/usb/misc/usbtest.c
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Diffstat (limited to 'drivers/usb/misc/usbtest.c')
-rw-r--r--drivers/usb/misc/usbtest.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 959145baf3cf..9dcb68f04f03 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -423,7 +423,7 @@ alloc_sglist(int nents, int max, int vary)
unsigned i;
unsigned size = max;
- sg = kmalloc(nents * sizeof *sg, GFP_KERNEL);
+ sg = kmalloc_array(nents, sizeof *sg, GFP_KERNEL);
if (!sg)
return NULL;
sg_init_table(sg, nents);
@@ -904,6 +904,9 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
struct ctrl_ctx context;
int i;
+ if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
+ return -EOPNOTSUPP;
+
spin_lock_init(&context.lock);
context.dev = dev;
init_completion(&context.complete);
@@ -1981,8 +1984,6 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
/* queued control messaging */
case 10:
- if (param->sglen == 0)
- break;
retval = 0;
dev_info(&intf->dev,
"TEST 10: queue %d control calls, %d times\n",
@@ -2276,6 +2277,8 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (status < 0) {
WARNING(dev, "couldn't get endpoints, %d\n",
status);
+ kfree(dev->buf);
+ kfree(dev);
return status;
}
/* may find bulk or ISO pipes */