Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.12 610/700] thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default() | Date | Mon, 12 Jul 2021 08:11:33 +0200 |
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From: Mika Westerberg <mika.westerberg@linux.intel.com>
[ Upstream commit a0d36fa1065901f939b04587a09c65303a64ac88 ]
We should not dereference ->dual_link_port if it is NULL and lane bonding is requested. For this reason move lane bonding configuration happen inside the block where ->dual_link_port != NULL.
Fixes: 54509f5005ca ("thunderbolt: Add KUnit tests for path walking") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Yehezkel Bernat <YehezkelShB@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/thunderbolt/test.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c index 464c2d37b992..e254f8c37cb7 100644 --- a/drivers/thunderbolt/test.c +++ b/drivers/thunderbolt/test.c @@ -259,14 +259,14 @@ static struct tb_switch *alloc_dev_default(struct kunit *test, if (port->dual_link_port && upstream_port->dual_link_port) { port->dual_link_port->remote = upstream_port->dual_link_port; upstream_port->dual_link_port->remote = port->dual_link_port; - } - if (bonded) { - /* Bonding is used */ - port->bonded = true; - port->dual_link_port->bonded = true; - upstream_port->bonded = true; - upstream_port->dual_link_port->bonded = true; + if (bonded) { + /* Bonding is used */ + port->bonded = true; + port->dual_link_port->bonded = true; + upstream_port->bonded = true; + upstream_port->dual_link_port->bonded = true; + } } return sw; -- 2.30.2
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