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aes3500: Fix possible crash if USB init fails

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The code was indented, but only the first call was actually in the
conditional, which meant that initialisation carried on as normal on top
of a failed USB device. Exit early and remove the conditional to fix
this.
This commit is contained in:
Bastien Nocera 2016-11-05 00:11:30 +01:00
parent a0bbbd7d32
commit 8454a25ecf
1 changed files with 11 additions and 10 deletions
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5
libfprint/drivers/aes3500.c
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@ -130,15 +130,16 @@ static int dev_init(struct fp_img_dev *dev, unsigned long driver_data)
struct aes3k_dev *aesdev; struct aes3k_dev *aesdev;
r = libusb_claim_interface(dev->udev, 0); r = libusb_claim_interface(dev->udev, 0);
if (r < 0) if (r < 0) {
fp_err("could not claim interface 0: %s", libusb_error_name(r)); fp_err("could not claim interface 0: %s", libusb_error_name(r));
return r;
}
aesdev = dev->priv = g_malloc0(sizeof(struct aes3k_dev)); aesdev = dev->priv = g_malloc0(sizeof(struct aes3k_dev));
if (!aesdev) if (!aesdev)
return -ENOMEM; return -ENOMEM;
if (r == 0)
aesdev->data_buflen = DATA_BUFLEN; aesdev->data_buflen = DATA_BUFLEN;
aesdev->frame_width = FRAME_WIDTH; aesdev->frame_width = FRAME_WIDTH;
aesdev->frame_size = FRAME_SIZE; aesdev->frame_size = FRAME_SIZE;