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devlink: fix memory leak on 'resource' 

Currently, if the call to devlink_resource_find returns null then
the error exit path does not free the devlink_resource 'resource'
and a memory leak occurs. Fix this by kfree'ing resource on the
error exit path.

Detected by CoverityScan, CID#1464184 ("Resource leak")

Fixes: d9f9b9a4d0 ("devlink: Add support for resource abstraction")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Colin Ian King 2018-01-22 10:31:19 +00:00 committed by David S. Miller
parent 2ae50dea1d
commit b75703de16
1 changed files with 1 additions and 0 deletions
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net/core/devlink.c
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@ -3182,6 +3182,7 @@ int devlink_resource_register(struct devlink *devlink,
resource_list = &parent_resource->resource_list;
resource->parent = parent_resource;
} else {
kfree(resource);
err = -EINVAL;
goto out;
}