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usb: host: isp1362-hcd: convert to DEFINE_SHOW_ATTRIBUTE 

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yangtao Li 2018-12-05 11:33:39 -05:00 committed by Greg Kroah-Hartman
parent 5ac93d0c5d
commit 9e412c66a8
1 changed files with 3 additions and 13 deletions
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16
drivers/usb/host/isp1362-hcd.c
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@ -2159,25 +2159,15 @@ static int isp1362_show(struct seq_file *s, void *unused)
return 0;
}
static int isp1362_open(struct inode *inode, struct file *file)
{
return single_open(file, isp1362_show, inode);
}
static const struct file_operations debug_ops = {
.open = isp1362_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(isp1362);
/* expect just one isp1362_hcd per system */
static void create_debug_file(struct isp1362_hcd *isp1362_hcd)
{
isp1362_hcd->debug_file = debugfs_create_file("isp1362", S_IRUGO,
usb_debug_root,
isp1362_hcd, &debug_ops);
isp1362_hcd,
&isp1362_fops);
}
static void remove_debug_file(struct isp1362_hcd *isp1362_hcd)