diff options
| -rw-r--r-- | drivers/usb/host/ohci-dbg.c | 31 |
1 files changed, 10 insertions, 21 deletions
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index d3269656aa4d..811f5dfdc582 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -431,7 +431,7 @@ static struct dentry *ohci_debug_root; struct debug_buffer { ssize_t (*fill_func)(struct debug_buffer *); /* fill method */ - struct device *dev; + struct ohci_hcd *ohci; struct mutex mutex; /* protect filling of buffer */ size_t count; /* number of characters filled into buffer */ char *page; @@ -505,15 +505,11 @@ show_list (struct ohci_hcd *ohci, char *buf, size_t count, struct ed *ed) static ssize_t fill_async_buffer(struct debug_buffer *buf) { - struct usb_bus *bus; - struct usb_hcd *hcd; struct ohci_hcd *ohci; size_t temp; unsigned long flags; - bus = dev_get_drvdata(buf->dev); - hcd = bus_to_hcd(bus); - ohci = hcd_to_ohci(hcd); + ohci = buf->ohci; /* display control and bulk lists together, for simplicity */ spin_lock_irqsave (&ohci->lock, flags); @@ -529,8 +525,6 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) static ssize_t fill_periodic_buffer(struct debug_buffer *buf) { - struct usb_bus *bus; - struct usb_hcd *hcd; struct ohci_hcd *ohci; struct ed **seen, *ed; unsigned long flags; @@ -542,9 +536,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) return 0; seen_count = 0; - bus = (struct usb_bus *)dev_get_drvdata(buf->dev); - hcd = bus_to_hcd(bus); - ohci = hcd_to_ohci(hcd); + ohci = buf->ohci; next = buf->page; size = PAGE_SIZE; @@ -626,7 +618,6 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) static ssize_t fill_registers_buffer(struct debug_buffer *buf) { - struct usb_bus *bus; struct usb_hcd *hcd; struct ohci_hcd *ohci; struct ohci_regs __iomem *regs; @@ -635,9 +626,8 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) char *next; u32 rdata; - bus = (struct usb_bus *)dev_get_drvdata(buf->dev); - hcd = bus_to_hcd(bus); - ohci = hcd_to_ohci(hcd); + ohci = buf->ohci; + hcd = ohci_to_hcd(ohci); regs = ohci->regs; next = buf->page; size = PAGE_SIZE; @@ -710,7 +700,7 @@ done: return PAGE_SIZE - size; } -static struct debug_buffer *alloc_buffer(struct device *dev, +static struct debug_buffer *alloc_buffer(struct ohci_hcd *ohci, ssize_t (*fill_func)(struct debug_buffer *)) { struct debug_buffer *buf; @@ -718,7 +708,7 @@ static struct debug_buffer *alloc_buffer(struct device *dev, buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL); if (buf) { - buf->dev = dev; + buf->ohci = ohci; buf->fill_func = fill_func; mutex_init(&buf->mutex); } @@ -810,26 +800,25 @@ static int debug_registers_open(struct inode *inode, struct file *file) static inline void create_debug_files (struct ohci_hcd *ohci) { struct usb_bus *bus = &ohci_to_hcd(ohci)->self; - struct device *dev = bus->dev; ohci->debug_dir = debugfs_create_dir(bus->bus_name, ohci_debug_root); if (!ohci->debug_dir) goto dir_error; ohci->debug_async = debugfs_create_file("async", S_IRUGO, - ohci->debug_dir, dev, + ohci->debug_dir, ohci, &debug_async_fops); if (!ohci->debug_async) goto async_error; ohci->debug_periodic = debugfs_create_file("periodic", S_IRUGO, - ohci->debug_dir, dev, + ohci->debug_dir, ohci, &debug_periodic_fops); if (!ohci->debug_periodic) goto periodic_error; ohci->debug_registers = debugfs_create_file("registers", S_IRUGO, - ohci->debug_dir, dev, + ohci->debug_dir, ohci, &debug_registers_fops); if (!ohci->debug_registers) goto registers_error; |