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-rw-r--r--net/core/net-sysfs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 6ac29a4..484f587 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -77,7 +77,9 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
if (endp == buf)
goto err;
- rtnl_lock();
+ if (!rtnl_trylock())
+ return -ERESTARTSYS;
+
if (dev_isalive(net)) {
if ((ret = (*set)(net, new)) == 0)
ret = len;