Author: zbb
Date: Mon Jul 3 23:59:11 2017
New Revision: 320625
URL: https://svnweb.freebsd.org/changeset/base/320625
Log:
Add missing lock upon initialization of the interface
Lack of this lock was causing crash if down was called in
parallel with the initialization routine.
Submitted by: Michal Krawczyk <m...@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon.com Inc.
Modified:
head/sys/dev/ena/ena.c
Modified: head/sys/dev/ena/ena.c
==============================================================================
--- head/sys/dev/ena/ena.c Mon Jul 3 23:54:39 2017 (r320624)
+++ head/sys/dev/ena/ena.c Mon Jul 3 23:59:11 2017 (r320625)
@@ -2276,8 +2276,11 @@ ena_init(void *arg)
{
struct ena_adapter *adapter = (struct ena_adapter *)arg;
- if (adapter->up == false)
+ if (adapter->up == false) {
+ sx_xlock(&adapter->ioctl_sx);
ena_up(adapter);
+ sx_unlock(&adapter->ioctl_sx);
+ }
return;
}
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