From 1c055e55a242a33e574e48be530e06770a210dcd Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 19 Feb 2024 03:26:26 +0000
Subject: [PATCH] add r8169 read mac form eeprom
---
kernel/drivers/usb/misc/iowarrior.c | 54 +++++++++++++++---------------------------------------
1 files changed, 15 insertions(+), 39 deletions(-)
diff --git a/kernel/drivers/usb/misc/iowarrior.c b/kernel/drivers/usb/misc/iowarrior.c
index 07d6bc6..51a5d62 100644
--- a/kernel/drivers/usb/misc/iowarrior.c
+++ b/kernel/drivers/usb/misc/iowarrior.c
@@ -10,7 +10,7 @@
* usb-skeleton.c by Greg Kroah-Hartman <greg@kroah.com>
* brlvger.c by Stephane Dalton <sdalton@videotron.ca>
- * and St�hane Doyon <s.doyon@videotron.ca>
+ * and Stephane Doyon <s.doyon@videotron.ca>
*
* Released under the GPLv2.
*/
@@ -63,11 +63,7 @@
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-/* Module parameters */
-static DEFINE_MUTEX(iowarrior_mutex);
-
static struct usb_driver iowarrior_driver;
-static DEFINE_MUTEX(iowarrior_open_disc_lock);
/*--------------*/
/* data */
@@ -245,7 +241,7 @@
wake_up_interruptible(&dev->write_wait);
}
-/**
+/*
* iowarrior_delete
*/
static inline void iowarrior_delete(struct iowarrior *dev)
@@ -272,7 +268,7 @@
return (read_idx == intr_idx ? -1 : read_idx);
}
-/**
+/*
* iowarrior_read
*/
static ssize_t iowarrior_read(struct file *file, char __user *buffer,
@@ -476,7 +472,7 @@
return retval;
}
-/**
+/*
* iowarrior_ioctl
*/
static long iowarrior_ioctl(struct file *file, unsigned int cmd,
@@ -496,8 +492,6 @@
if (!buffer)
return -ENOMEM;
- /* lock this object */
- mutex_lock(&iowarrior_mutex);
mutex_lock(&dev->mutex);
/* verify that the device wasn't unplugged */
@@ -591,12 +585,11 @@
error_out:
/* unlock the device */
mutex_unlock(&dev->mutex);
- mutex_unlock(&iowarrior_mutex);
kfree(buffer);
return retval;
}
-/**
+/*
* iowarrior_open
*/
static int iowarrior_open(struct inode *inode, struct file *file)
@@ -606,27 +599,20 @@
int subminor;
int retval = 0;
- mutex_lock(&iowarrior_mutex);
subminor = iminor(inode);
interface = usb_find_interface(&iowarrior_driver, subminor);
if (!interface) {
- mutex_unlock(&iowarrior_mutex);
- printk(KERN_ERR "%s - error, can't find device for minor %d\n",
+ pr_err("%s - error, can't find device for minor %d\n",
__func__, subminor);
return -ENODEV;
}
- mutex_lock(&iowarrior_open_disc_lock);
dev = usb_get_intfdata(interface);
- if (!dev) {
- mutex_unlock(&iowarrior_open_disc_lock);
- mutex_unlock(&iowarrior_mutex);
+ if (!dev)
return -ENODEV;
- }
mutex_lock(&dev->mutex);
- mutex_unlock(&iowarrior_open_disc_lock);
/* Only one process can open each device, no sharing. */
if (dev->opened) {
@@ -648,11 +634,10 @@
out:
mutex_unlock(&dev->mutex);
- mutex_unlock(&iowarrior_mutex);
return retval;
}
-/**
+/*
* iowarrior_release
*/
static int iowarrior_release(struct inode *inode, struct file *file)
@@ -754,7 +739,7 @@
/*---------------------------------*/
/* probe and disconnect functions */
/*---------------------------------*/
-/**
+/*
* iowarrior_probe
*
* Called by the usb core when a new device is connected that it thinks
@@ -832,7 +817,7 @@
break;
case USB_DEVICE_ID_CODEMERCS_IOW100:
- dev->report_size = 13;
+ dev->report_size = 12;
break;
}
}
@@ -852,8 +837,8 @@
dev->int_in_endpoint->bInterval);
/* create an internal buffer for interrupt data from the device */
dev->read_queue =
- kmalloc(((dev->report_size + 1) * MAX_INTERRUPT_BUFFER),
- GFP_KERNEL);
+ kmalloc_array(dev->report_size + 1, MAX_INTERRUPT_BUFFER,
+ GFP_KERNEL);
if (!dev->read_queue)
goto error;
/* Get the serial-number of the chip */
@@ -880,7 +865,6 @@
if (retval) {
/* something prevented us from registering this driver */
dev_err(&interface->dev, "Not able to get a minor for this device.\n");
- usb_set_intfdata(interface, NULL);
goto error;
}
@@ -897,23 +881,15 @@
return retval;
}
-/**
+/*
* iowarrior_disconnect
*
* Called by the usb core when the device is removed from the system.
*/
static void iowarrior_disconnect(struct usb_interface *interface)
{
- struct iowarrior *dev;
- int minor;
-
- dev = usb_get_intfdata(interface);
- mutex_lock(&iowarrior_open_disc_lock);
- usb_set_intfdata(interface, NULL);
-
- minor = dev->minor;
- mutex_unlock(&iowarrior_open_disc_lock);
- /* give back our minor - this will call close() locks need to be dropped at this point*/
+ struct iowarrior *dev = usb_get_intfdata(interface);
+ int minor = dev->minor;
usb_deregister_dev(interface, &iowarrior_class);
--
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