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authorMika Westerberg <mika.westerberg@linux.intel.com>2018-06-26 14:46:35 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-07 18:29:17 +0300
commit007a74907deeceefef9dc3ec4679fbd7921eaa51 (patch)
treea49847e7e5775d4b6ad7ba5451af8233121c9667 /drivers/thunderbolt
parent57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 (diff)
downloadlinux-007a74907deeceefef9dc3ec4679fbd7921eaa51.tar.xz
thunderbolt: Notify userspace when boot_acl is changed
The commit 9aaa3b8b4c56 ("thunderbolt: Add support for preboot ACL") introduced boot_acl attribute but missed the fact that now userspace needs to poll the attribute constantly to find out whether it has changed or not. Fix this by sending notification to the userspace whenever the boot_acl attribute is changed. Fixes: 9aaa3b8b4c56 ("thunderbolt: Add support for preboot ACL") Reported-and-tested-by: Christian Kellner <christian@kellner.me> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Christian Kellner <christian@kellner.me> Acked-by: Yehezkel Bernat <yehezkelshb@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt')
-rw-r--r--drivers/thunderbolt/domain.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c
index 6281266b8ec0..a923ebdeb73c 100644
--- a/drivers/thunderbolt/domain.c
+++ b/drivers/thunderbolt/domain.c
@@ -213,6 +213,10 @@ static ssize_t boot_acl_store(struct device *dev, struct device_attribute *attr,
goto err_free_acl;
}
ret = tb->cm_ops->set_boot_acl(tb, acl, tb->nboot_acl);
+ if (!ret) {
+ /* Notify userspace about the change */
+ kobject_uevent(&tb->dev.kobj, KOBJ_CHANGE);
+ }
mutex_unlock(&tb->lock);
err_free_acl: