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USB: host: sl811: remove dentry pointer for debugfs

There is no need to keep the dentry pointer around for the created
debugfs file, as it is only needed when removing it from the system.
When it is to be removed, ask debugfs itself for the pointer, to save on
storage and make things a bit simpler.

Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/20210216144645.3813043-3-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2021-02-16 15:46:42 +01:00
parent 7347f4b95f
commit 82d4afcfa9
2 changed files with 3 additions and 5 deletions
drivers/usb/host

View File

@ -1496,14 +1496,13 @@ DEFINE_SHOW_ATTRIBUTE(sl811h_debug);
/* expect just one sl811 per system */
static void create_debug_file(struct sl811 *sl811)
{
sl811->debug_file = debugfs_create_file("sl811h", S_IRUGO,
usb_debug_root, sl811,
&sl811h_debug_fops);
debugfs_create_file("sl811h", S_IRUGO, usb_debug_root, sl811,
&sl811h_debug_fops);
}
static void remove_debug_file(struct sl811 *sl811)
{
debugfs_remove(sl811->debug_file);
debugfs_remove(debugfs_lookup("sl811h", usb_debug_root));
}
/*-------------------------------------------------------------------------*/

View File

@ -123,7 +123,6 @@ struct sl811 {
void __iomem *addr_reg;
void __iomem *data_reg;
struct sl811_platform_data *board;
struct dentry *debug_file;
unsigned long stat_insrmv;
unsigned long stat_wake;