EDAC/sysfs: move to use bus_get_dev_root()
Direct access to the struct bus_type dev_root pointer is going away soon so replace that with a call to bus_get_dev_root() instead, which is what it is there for. Cc: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Cc: James Morse <james.morse@arm.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Robert Richter <rric@kernel.org> Cc: linux-edac@vger.kernel.org Link: https://lore.kernel.org/r/20230313182918.1312597-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -228,8 +228,9 @@ static struct kobj_type ktype_device_ctrl = {
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*/
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int edac_device_register_sysfs_main_kobj(struct edac_device_ctl_info *edac_dev)
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{
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struct device *dev_root;
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struct bus_type *edac_subsys;
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int err;
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int err = -ENODEV;
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edac_dbg(1, "\n");
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@ -247,15 +248,16 @@ int edac_device_register_sysfs_main_kobj(struct edac_device_ctl_info *edac_dev)
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*/
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edac_dev->owner = THIS_MODULE;
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if (!try_module_get(edac_dev->owner)) {
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err = -ENODEV;
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if (!try_module_get(edac_dev->owner))
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goto err_out;
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}
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/* register */
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err = kobject_init_and_add(&edac_dev->kobj, &ktype_device_ctrl,
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&edac_subsys->dev_root->kobj,
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"%s", edac_dev->name);
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dev_root = bus_get_dev_root(edac_subsys);
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if (dev_root) {
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err = kobject_init_and_add(&edac_dev->kobj, &ktype_device_ctrl,
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&dev_root->kobj, "%s", edac_dev->name);
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put_device(dev_root);
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}
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if (err) {
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edac_dbg(1, "Failed to register '.../edac/%s'\n",
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edac_dev->name);
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@ -337,8 +337,9 @@ static struct kobj_type ktype_edac_pci_main_kobj = {
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*/
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static int edac_pci_main_kobj_setup(void)
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{
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int err;
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int err = -ENODEV;
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struct bus_type *edac_subsys;
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struct device *dev_root;
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edac_dbg(0, "\n");
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@ -357,7 +358,6 @@ static int edac_pci_main_kobj_setup(void)
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*/
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if (!try_module_get(THIS_MODULE)) {
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edac_dbg(1, "try_module_get() failed\n");
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err = -ENODEV;
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goto decrement_count_fail;
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}
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@ -369,9 +369,13 @@ static int edac_pci_main_kobj_setup(void)
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}
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/* Instanstiate the pci object */
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err = kobject_init_and_add(edac_pci_top_main_kobj,
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&ktype_edac_pci_main_kobj,
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&edac_subsys->dev_root->kobj, "pci");
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dev_root = bus_get_dev_root(edac_subsys);
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if (dev_root) {
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err = kobject_init_and_add(edac_pci_top_main_kobj,
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&ktype_edac_pci_main_kobj,
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&dev_root->kobj, "pci");
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put_device(dev_root);
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}
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if (err) {
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edac_dbg(1, "Failed to register '.../edac/pci'\n");
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goto kobject_init_and_add_fail;
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