debugfs: Provide a file creation function that also takes an initial size
Provide a file creation function that also takes an initial size so that the
caller doesn't have to set i_size, thus meaning that we don't have to call
deal with ->d_inode in the callers.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 9f93bed..b2239a2 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -264,14 +264,17 @@
goto err_root;
udc->debugfs_root = root;
- regs = debugfs_create_file("regs", 0400, root, udc, ®s_dbg_fops);
- if (!regs)
- goto err_regs;
-
regs_resource = platform_get_resource(udc->pdev, IORESOURCE_MEM,
CTRL_IOMEM_ID);
- regs->d_inode->i_size = resource_size(regs_resource);
- udc->debugfs_regs = regs;
+
+ if (regs_resource) {
+ regs = debugfs_create_file_size("regs", 0400, root, udc,
+ ®s_dbg_fops,
+ resource_size(regs_resource));
+ if (!regs)
+ goto err_regs;
+ udc->debugfs_regs = regs;
+ }
usba_ep_init_debugfs(udc, to_usba_ep(udc->gadget.ep0));