@@ -1975,8 +1975,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
- if (!host)
- return -ENOMEM;
+ if (!host) {
+ rc = -ENOMEM;
+ goto err_rm_sysfs_file;
+ }
host->private_data = hpriv;
if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
@@ -2031,11 +2033,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* initialize adapter */
rc = ahci_configure_dma_masks(pdev, hpriv);
if (rc)
- return rc;
+ goto err_rm_sysfs_file;
rc = ahci_pci_reset_controller(host);
if (rc)
- return rc;
+ goto err_rm_sysfs_file;
ahci_pci_init_controller(host);
ahci_pci_print_info(host);
@@ -2044,10 +2046,15 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rc = ahci_host_activate(host, &ahci_sht);
if (rc)
- return rc;
+ goto err_rm_sysfs_file;
pm_runtime_put_noidle(&pdev->dev);
return 0;
+
+err_rm_sysfs_file:
+ sysfs_remove_file_from_group(&pdev->dev.kobj,
+ &dev_attr_remapped_nvme.attr, NULL);
+ return rc;
}
static void ahci_shutdown_one(struct pci_dev *pdev)
.probe() (ahci_init_one()) calls sysfs_add_file_to_group(), however, if probe() fails after this call, we currently never call sysfs_remove_file_from_group(). (The sysfs_remove_file_from_group() call in .remove() (ahci_remove_one()) does not help, as .remove() is not called on .probe() error.) Thus, if probe() fails after the sysfs_add_file_to_group() call, the next time we insmod the module we will get: sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:04.0/remapped_nvme' CPU: 11 PID: 954 Comm: modprobe Not tainted 6.10.0-rc5 #43 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x5d/0x80 sysfs_warn_dup.cold+0x17/0x23 sysfs_add_file_mode_ns+0x11a/0x130 sysfs_add_file_to_group+0x7e/0xc0 ahci_init_one+0x31f/0xd40 [ahci] Fixes: 894fba7f434a ("ata: ahci: Add sysfs attribute to show remapped NVMe device count") Cc: stable@vger.kernel.org Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Niklas Cassel <cassel@kernel.org> --- drivers/ata/ahci.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-)