[PATCH 1/2] misc: hpilo: fix inconsistent device numbers

From: Ian Abbott
Date: Fri Jan 19 2024 - 08:28:16 EST


Each iLO device is allocated `max_ccb` minor device numbers (one for
each channel). When `ilo_probe()` calls `device_create()` in a loop,
the minor device numbers passed to `device_create()` start at 0. For
consistency with the call to `cdev_add()`, and for consistency with the
calls to `device_destroy()` from `ilo_remove()`, the minor device
numbers passed to `device_create()` should start at the value in the
variable `start`. Fix it.

This is a logical bug rather than an actual bug, because the number of
supported devices is `MAX_ILO_DEV` which is defined as `1`.

Fixes: 89bcb05d9bbf ("HP iLO driver")
Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>
---
drivers/misc/hpilo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index f1b74d3f8958..3428a0bd5550 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -842,7 +842,7 @@ static int ilo_probe(struct pci_dev *pdev,
for (minor = 0 ; minor < max_ccb; minor++) {
struct device *dev;
dev = device_create(&ilo_class, &pdev->dev,
- MKDEV(ilo_major, minor), NULL,
+ MKDEV(ilo_major, start + minor), NULL,
"hpilo!d%dccb%d", devnum, minor);
if (IS_ERR(dev))
dev_err(&pdev->dev, "Could not create files\n");
--
2.43.0