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| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-11-04 06:39:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-14 12:15:17 +0300 |
| commit | 48d42f4464d713fbdd79f334fdcd6e5be534cc67 (patch) | |
| tree | 1eda2c35139a93fba69a8818cf84a891c95cc76d /arch/mips | |
| parent | f5f2682d3a34dd8350bf63f232d885fd95f25b92 (diff) | |
| download | linux-48d42f4464d713fbdd79f334fdcd6e5be534cc67.tar.xz | |
MIPS: vpe-mt: fix possible memory leak while module exiting
[ Upstream commit 5822e8cc84ee37338ab0bdc3124f6eec04dc232d ]
Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's
bus_id string array"), the name of device is allocated dynamically,
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: 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array")
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>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/kernel/vpe-mt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/kernel/vpe-mt.c b/arch/mips/kernel/vpe-mt.c index 2e003b11a098..9fd7cd48ea1d 100644 --- a/arch/mips/kernel/vpe-mt.c +++ b/arch/mips/kernel/vpe-mt.c @@ -313,7 +313,6 @@ ATTRIBUTE_GROUPS(vpe); static void vpe_device_release(struct device *cd) { - kfree(cd); } static struct class vpe_class = { @@ -497,6 +496,7 @@ out_dev: device_del(&vpe_device); out_class: + put_device(&vpe_device); class_unregister(&vpe_class); out_chrdev: @@ -509,7 +509,7 @@ 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); |