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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-31 09:50:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-31 09:50:26 +0200 |
| commit | aa10fab0f859ef86e998ee1cdaa89fc8e542e2c9 (patch) | |
| tree | d76af7ad635537fa59e033306f900408cd470168 /drivers/s390/cio/vfio_ccw_cp.c | |
| parent | 7652dd2c5cb7b656471cc801d619fe24120643a3 (diff) | |
| parent | 8124c8a6b35386f73523d27eacb71b5364a68c4c (diff) | |
Merge 5.13-rc4 into usb-next
We need the usb/thunderbolt fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_cp.c')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_cp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c index b9febc581b1f..8d1b2771c1aa 100644 --- a/drivers/s390/cio/vfio_ccw_cp.c +++ b/drivers/s390/cio/vfio_ccw_cp.c @@ -638,6 +638,10 @@ int cp_init(struct channel_program *cp, struct device *mdev, union orb *orb) static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 1); int ret; + /* this is an error in the caller */ + if (cp->initialized) + return -EBUSY; + /* * We only support prefetching the channel program. We assume all channel * programs executed by supported guests likewise support prefetching. |