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--- a/drivers/usb/host/adm5120-dbg.c
+++ b/drivers/usb/host/adm5120-dbg.c
@@ -419,7 +419,7 @@ static struct dentry *admhc_debug_root;
struct debug_buffer {
ssize_t (*fill_func)(struct debug_buffer *); /* fill method */
- struct device *dev;
+ struct admhcd *ahcd;
struct mutex mutex; /* protect filling of buffer */
size_t count; /* number of characters filled into buffer */
char *page;
@@ -494,15 +494,11 @@ show_list(struct admhcd *ahcd, char *buf
static ssize_t fill_async_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
- struct usb_hcd *hcd;
struct admhcd *ahcd;
size_t temp;
unsigned long flags;
- bus = dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ahcd = hcd_to_admhcd(hcd);
+ ahcd = buf->ahcd;
spin_lock_irqsave(&ahcd->lock, flags);
temp = show_list(ahcd, buf->page, PAGE_SIZE, ahcd->ed_head);
@@ -516,8 +512,6 @@ static ssize_t fill_async_buffer(struct
static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
- struct usb_hcd *hcd;
struct admhcd *ahcd;
struct ed **seen, *ed;
unsigned long flags;
@@ -530,9 +524,7 @@ static ssize_t fill_periodic_buffer(stru
return 0;
seen_count = 0;
- bus = dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ahcd = hcd_to_admhcd(hcd);
+ ahcd = buf->ahcd;
next = buf->page;
size = PAGE_SIZE;
@@ -615,7 +607,6 @@ static ssize_t fill_periodic_buffer(stru
static ssize_t fill_registers_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
struct usb_hcd *hcd;
struct admhcd *ahcd;
struct admhcd_regs __iomem *regs;
@@ -624,9 +615,8 @@ static ssize_t fill_registers_buffer(str
char *next;
u32 rdata;
- bus = dev_get_drvdata(buf->dev);
- hcd = bus_to_hcd(bus);
- ahcd = hcd_to_admhcd(hcd);
+ ahcd = buf->ahcd;
+ hcd = admhcd_to_hcd(ahcd);
regs = ahcd->regs;
next = buf->page;
size = PAGE_SIZE;
@@ -691,7 +681,7 @@ done:
}
-static struct debug_buffer *alloc_buffer(struct device *dev,
+static struct debug_buffer *alloc_buffer(struct admhcd *ahcd,
ssize_t (*fill_func)(struct debug_buffer *))
{
struct debug_buffer *buf;
@@ -699,7 +689,7 @@ static struct debug_buffer *alloc_buffer
buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
if (buf) {
- buf->dev = dev;
+ buf->ahcd = ahcd;
buf->fill_func = fill_func;
mutex_init(&buf->mutex);
}
@@ -792,26 +782,25 @@ static int debug_registers_open(struct i
static inline void create_debug_files(struct admhcd *ahcd)
{
struct usb_bus *bus = &admhcd_to_hcd(ahcd)->self;
- struct device *dev = bus->dev;
ahcd->debug_dir = debugfs_create_dir(bus->bus_name, admhc_debug_root);
if (!ahcd->debug_dir)
goto dir_error;
ahcd->debug_async = debugfs_create_file("async", S_IRUGO,
- ahcd->debug_dir, dev,
+ ahcd->debug_dir, ahcd,
&debug_async_fops);
if (!ahcd->debug_async)
goto async_error;
ahcd->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
- ahcd->debug_dir, dev,
+ ahcd->debug_dir, ahcd,
&debug_periodic_fops);
if (!ahcd->debug_periodic)
goto periodic_error;
ahcd->debug_registers = debugfs_create_file("registers", S_IRUGO,
- ahcd->debug_dir, dev,
+ ahcd->debug_dir, ahcd,
&debug_registers_fops);
if (!ahcd->debug_registers)
goto registers_error;
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