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| author |   Juergen Gross <jgross@suse.com> | 2020-03-05 11:03:23 +0100 |
|---|---|---|
| committer |   Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2020-03-05 09:42:23 -0600 |
| commit | 2f69a110e7bba3ec6bc089a2f736ca0941d887ed (patch) | |
| tree | 57ffc62e0497d2f1be6ad89f9abd7c8adbdde722 /mm/sparse.c | |
| parent | xenbus: req->err should be updated before req->state (diff) | |
| download | wireguard-linux-2f69a110e7bba3ec6bc089a2f736ca0941d887ed.tar.xz wireguard-linux-2f69a110e7bba3ec6bc089a2f736ca0941d887ed.zip | |
xen/xenbus: fix locking
Commit 060eabe8fbe726 ("xenbus/backend: Protect xenbus callback with
lock") introduced a bug by holding a lock while calling a function
which might schedule.
Fix that by using a semaphore instead.
Fixes: 060eabe8fbe726 ("xenbus/backend: Protect xenbus callback with lock")
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200305100323.16736-1-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'mm/sparse.c')
0 files changed, 0 insertions, 0 deletions