![]() The use after free is not triggerable here because the cdev holds the module lock and the only device_unregister is only triggered by module unload, however make the change for consistency. To make this work the cdev_del needs to move out of the struct device release function. This cleans up the error path significantly and thus also fixes a minor bug where the devnum would not be released if cdev_add failed. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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