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mmc: vub300: fix null dereferences in error handling

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Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Chris Ball 2011-05-26 23:15:49 -04:00
parent c11760c6d8
commit c44048dea2
1 changed files with 4 additions and 7 deletions
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11
drivers/mmc/host/vub300.c
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@ -2096,7 +2096,7 @@ static struct mmc_host_ops vub300_mmc_ops = {
static int vub300_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{ /* NOT irq */
struct vub300_mmc_host *vub300 = NULL;
struct vub300_mmc_host *vub300;
struct usb_host_interface *iface_desc;
struct usb_device *udev = usb_get_dev(interface_to_usbdev(interface));
int i;
@ -2118,23 +2118,20 @@ static int vub300_probe(struct usb_interface *interface,
command_out_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!command_out_urb) {
retval = -ENOMEM;
dev_err(&vub300->udev->dev,
"not enough memory for the command_out_urb\n");
dev_err(&udev->dev, "not enough memory for command_out_urb\n");
goto error0;
}
command_res_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!command_res_urb) {
retval = -ENOMEM;
dev_err(&vub300->udev->dev,
"not enough memory for the command_res_urb\n");
dev_err(&udev->dev, "not enough memory for command_res_urb\n");
goto error1;
}
/* this also allocates memory for our VUB300 mmc host device */
mmc = mmc_alloc_host(sizeof(struct vub300_mmc_host), &udev->dev);
if (!mmc) {
retval = -ENOMEM;
dev_err(&vub300->udev->dev,
"not enough memory for the mmc_host\n");
dev_err(&udev->dev, "not enough memory for the mmc_host\n");
goto error4;
}
/* MMC core transfer sizes tunable parameters */