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scsi: core: Fix possible memory leak if device_add() fails

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commit 04b5b5cb01 upstream.

If device_add() returns error, the name allocated by dev_set_name() needs
be freed. As the comment of device_add() says, put_device() should be used
to decrease the reference count in the error path. So fix this by calling
put_device(), then the name can be freed in kobject_cleanp().

Fixes: ee959b00c3 ("SCSI: convert struct class_device to struct device")
Signed-off-by: Zhu Wang <wangzhu9@huawei.com>
Link: https://lore.kernel.org/r/20230803020230.226903-1-wangzhu9@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhu Wang
2023-08-03 10:02:30 +08:00
committed by Greg Kroah-Hartman
parent 461f8ac666
commit 6bc7f4c8c2
1 changed files with 1 additions and 0 deletions
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drivers/scsi/raid_class.c
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@@ -248,6 +248,7 @@ int raid_component_add(struct raid_template *r,struct device *raid_dev,
return 0;
err_out:
put_device(&rc->dev);
list_del(&rc->node);
rd->component_count--;
put_device(component_dev);