lkml.org 
[lkml]   [2019]   [May]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.1 326/405] thunderbolt: Fix to check return value of ida_simple_get
Date
[ Upstream commit 9aabb68568b473bf2f0b179d053b403961e42e4d ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/thunderbolt/xdomain.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index e27dd8beb94be..e0642dcb8b9bd 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -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;
--
2.20.1


\
 
 \ /
  Last update: 2019-05-30 06:44    [W:1.501 / U:0.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site