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When unloading and reloading the driver, the driver fails to recreate the lpfc root inode in the debugfs tree. The driver is incorrectly removing the lpfc root inode in lpfc_debugfs_terminate in the first driver instance that unloads and then sets the lpfc_debugfs_root global parameter to NULL. When the final driver instance unloads, the debugfs calls quietly ignore the remove on a NULL pointer. The bug is that the debugfs_remove call returns void so the driver doesn't know to correctly set the global parameter to NULL. Base the debugfs_remove of the lpfc_debugfs_root parameter on lpfc_debugfs_hba_count because this parameter tracks the fnX instance tracked per driver instance. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.