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thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default() 

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: 54509f5005 ("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>
This commit is contained in:
Mika Westerberg 2021-06-07 13:37:46 +03:00
parent 25335b30da
commit a0d36fa106
1 changed files with 11 additions and 11 deletions
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22
drivers/thunderbolt/test.c
View File

@ -303,18 +303,18 @@ 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->total_credits *= 2;
port->dual_link_port->bonded = true;
port->dual_link_port->total_credits = 0;
upstream_port->bonded = true;
upstream_port->total_credits *= 2;
upstream_port->dual_link_port->bonded = true;
upstream_port->dual_link_port->total_credits = 0;
if (bonded) {
/* Bonding is used */
port->bonded = true;
port->total_credits *= 2;
port->dual_link_port->bonded = true;
port->dual_link_port->total_credits = 0;
upstream_port->bonded = true;
upstream_port->total_credits *= 2;
upstream_port->dual_link_port->bonded = true;
upstream_port->dual_link_port->total_credits = 0;
}
}
return sw;