hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Simple virtio-rng fix. 

Thanks,
 Rusty.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJRP+naAAoJENkgDmzRrbjxur0P/3ZXZOlJgs+GbrZ1EpSgOfFV
 3HECtYjkPerZ34wKn2Y6Q3Ip8rDG6+ZarQMxzOkzFdMr2fjiOXFkZX5aLBsy99sn
 w+dNiu0LYrDSKTPPytNS3jUtnYEQMC/piYH2wO7PB+p1mZvrL+FepcigxKA9KJ90
 B8V0Fo9e8uY2/ownRLuD3umG7pSVM01QAqKv6oIvc7kMAp0eAkLq2haKdH1tGLsI
 uBDgH/Ah7k6rJhrpSRjckeocE2GcmNt5n58MeiABT5ZGmd9V9Qvl7rsbbzQYgrC6
 J/BFS7cII9lkw2nGXVX2w8/AAzXARCP7FobPQ8L9dkpEt/R2aONgnPd8QicazbqH
 zhktrnSaYiR1gKVhIn3bP+NY8sJPnG6GBBY9L3JV0xQpTHqbv32J1UOnAqxp5wrC
 +i6CCKESDr4Okc7PWQXwNdyG6RBcpADnmnZDmJ9s91fjhOdXB2X7IGX+SjIbmq6L
 dQA2C5k06bKDKbuihI4XbcTAja/jNb9e+AB9spuyqrQhsrgOkRf6YQTozN1CScSn
 4TOlVI2ddE5m2dSTDPxGx7C1FugxvT89jGAVPfgrfsuKC8aTAwawBQvNO9qBnFN0
 l4LIN9v5pJBQPwOUGlJezRa2jSv4+lLmb9wGHMj2m++Ev0aYU7Y4KjMMbugK+7d9
 W0oq16qSW8J23X9DngX0
 =wJLR
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull virtio rng buffix from Rusty Russell:
 "Simple virtio-rng fix."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  virtio: rng: disallow multiple device registrations, fixes crashes
This commit is contained in:
Linus Torvalds 2013-03-12 20:28:45 -07:00
parent 7946844ae8 e84e7a56a3
commit a3633f6730
1 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/char/hw_random/virtio-rng.c
View File

@ -92,14 +92,22 @@ static int probe_common(struct virtio_device *vdev)
{
int err;
if (vq) {
/* We only support one device for now */
return -EBUSY;
}
/* We expect a single virtqueue. */
vq = virtio_find_single_vq(vdev, random_recv_done, "input");
if (IS_ERR(vq))
return PTR_ERR(vq);
if (IS_ERR(vq)) {
err = PTR_ERR(vq);
vq = NULL;
return err;
}
err = hwrng_register(&virtio_hwrng);
if (err) {
vdev->config->del_vqs(vdev);
vq = NULL;
return err;
}
@ -112,6 +120,7 @@ static void remove_common(struct virtio_device *vdev)
busy = false;
hwrng_unregister(&virtio_hwrng);
vdev->config->del_vqs(vdev);
vq = NULL;
}
static int virtrng_probe(struct virtio_device *vdev)