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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-02-03 18:30:08 +0100 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2022-02-07 18:52:22 +0100 |
| commit | 8bc69f86328e87a0ffa79438430cc82f3aa6a194 (patch) | |
| tree | 47d6730bbb16206ae674374ea22223bccd583d83 /drivers/hv/vmbus_drv.c | |
| parent | PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology (diff) | |
| download | linux-8bc69f86328e87a0ffa79438430cc82f3aa6a194.tar.xz linux-8bc69f86328e87a0ffa79438430cc82f3aa6a194.zip | |
Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj
kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add()：
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object.
Fix memory leak by calling kobject_put().
Fixes: c2e5df616e1a ("vmbus: add per-channel sysfs info")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Juan Vazquez <juvazq@linux.microsoft.com>
Link: https://lore.kernel.org/r/20220203173008.43480-1-linmq006@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv/vmbus_drv.c')
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 17bf55fe3169..34a4fd21bdf5 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -2028,8 +2028,10 @@ int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel) kobj->kset = dev->channels_kset; ret = kobject_init_and_add(kobj, &vmbus_chan_ktype, NULL, "%u", relid); - if (ret) + if (ret) { + kobject_put(kobj); return ret; + } ret = sysfs_create_group(kobj, &vmbus_chan_group); @@ -2038,6 +2040,7 @@ int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel) * The calling functions' error handling paths will cleanup the * empty channel directory. */ + kobject_put(kobj); dev_err(device, "Unable to set up channel sysfs files\n"); return ret; } |