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authorDavid Howells <dhowells@redhat.com>2015-01-21 20:03:40 (GMT)
committerAl Viro <viro@zeniv.linux.org.uk>2015-02-17 17:21:51 (GMT)
commite59b4e9187bd5175b9845dc10fedb0879b7efbfd (patch)
treed1194fe02bcb93cd0fbf4924c9756158717338e9 /drivers/usb
parent77b3da6e3232d3b4d4b8addb4b05799fe98f3bf8 (diff)
downloadlinux-e59b4e9187bd5175b9845dc10fedb0879b7efbfd.tar.xz
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>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/udc/atmel_usba_udc.c15
1 files changed, 9 insertions, 6 deletions
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 @@ static void usba_init_debugfs(struct usba_udc *udc)
goto err_root;
udc->debugfs_root = root;
- regs = debugfs_create_file("regs", 0400, root, udc, &regs_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,
+ &regs_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));