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thunderbolt: Fix to check return value of ida_simple_get 

In enumerate_services, ida_simple_get on failure can return an error and
leaks memory. The patch ensures that the dev_set_name is set on non
failure cases, and releases memory during failure.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Aditya Pakki 2019-03-20 11:34:09 -05:00 committed by Mika Westerberg
parent 2cc12751cf
commit 9aabb68568
1 changed files with 7 additions and 1 deletions
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8
drivers/thunderbolt/xdomain.c
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@ -740,6 +740,7 @@ static void enumerate_services(struct tb_xdomain *xd)
struct tb_service *svc;
struct tb_property *p;
struct device *dev;
int id;
/*
* First remove all services that are not available anymore in
@ -768,7 +769,12 @@ static void enumerate_services(struct tb_xdomain *xd)
break;
}
svc->id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL);
id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL);
if (id < 0) {
kfree(svc);
break;
}
svc->id = id;
svc->dev.bus = &tb_bus_type;
svc->dev.type = &tb_service_type;
svc->dev.parent = &xd->dev;