diff options
author | Erhard Furtner <erhard_f@mailbox.org> | 2019-11-26 02:48:04 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-17 20:40:05 +0100 |
commit | 002fffa0fb32a3bb14b6422bac2cbb263cc0476b (patch) | |
tree | 884d180e160c61327cf5ba26617ecc6c82cc162f /drivers/of | |
parent | 2e22c56fb8993f9e7f329a29a2fb87585526859d (diff) |
of: unittest: fix memory leak in attach_node_and_children
[ Upstream commit 2aacace6dbbb6b6ce4e177e6c7ea901f389c0472 ]
In attach_node_and_children memory is allocated for full_name via
kasprintf. If the condition of the 1st if is not met the function
returns early without freeing the memory. Add a kfree() to fix that.
This has been detected with kmemleak:
Link: https://bugzilla.kernel.org/show_bug.cgi?id=205327
It looks like the leak was introduced by this commit:
Fixes: 5babefb7f7ab ("of: unittest: allow base devicetree to have symbol metadata")
Signed-off-by: Erhard Furtner <erhard_f@mailbox.org>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/of')
-rw-r--r-- | drivers/of/unittest.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 9d204649c963..4bf6a9db6ac0 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -965,8 +965,10 @@ static void attach_node_and_children(struct device_node *np) full_name = kasprintf(GFP_KERNEL, "%pOF", np); if (!strcmp(full_name, "/__local_fixups__") || - !strcmp(full_name, "/__fixups__")) + !strcmp(full_name, "/__fixups__")) { + kfree(full_name); return; + } dup = of_find_node_by_path(full_name); kfree(full_name); |