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| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-11-04 06:39:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-31 15:31:56 +0300 |
| commit | faf8fd9f576acbff4674bee41b256934f80874a5 (patch) | |
| tree | 1378e674c1602e13f353d13ae0f1e7c003983a13 | |
| parent | ab3d47c1fd0202821abd473ca87580faafd47847 (diff) | |
| download | linux-faf8fd9f576acbff4674bee41b256934f80874a5.tar.xz | |
MIPS: vpe-cmp: fix possible memory leak while module exiting
[ Upstream commit c5ed1fe0801f0c66b0fbce2785239a5664629057 ]
dev_set_name() allocates memory for name, it need be freed
when module exiting, call put_device() to give up reference,
so that it can be freed in kobject_cleanup() when the refcount
hit to 0. The vpe_device is static, so remove kfree() from
vpe_device_release().
Fixes: 17a1d523aa58 ("MIPS: APRP: Add VPE loader support for CMP platforms.")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | arch/mips/kernel/vpe-cmp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/kernel/vpe-cmp.c b/arch/mips/kernel/vpe-cmp.c index e673603e11e5..92140edb3ce3 100644 --- a/arch/mips/kernel/vpe-cmp.c +++ b/arch/mips/kernel/vpe-cmp.c @@ -75,7 +75,6 @@ ATTRIBUTE_GROUPS(vpe); static void vpe_device_release(struct device *cd) { - kfree(cd); } static struct class vpe_class = { @@ -157,6 +156,7 @@ out_dev: device_del(&vpe_device); out_class: + put_device(&vpe_device); class_unregister(&vpe_class); out_chrdev: @@ -169,7 +169,7 @@ void __exit vpe_module_exit(void) { struct vpe *v, *n; - device_del(&vpe_device); + device_unregister(&vpe_device); class_unregister(&vpe_class); unregister_chrdev(major, VPE_MODULE_NAME); |