From 1ec8f00f34a78f8d43504ffba3f31eddf4433408 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:22 +0100 Subject: [PATCH] usb: gadget: g_ffs: remove a reduntant gfs_ether_setup variable Since d6a0143985489e470a118605352f4b18df0ce142 usb: gadget: move the global the_dev variable to their users "the_dev" variable can be used as a "setup done" flag; non-NULL meaning "setup done", NULL meaning "setup not done". Moreover, gether_cleanup() can be safely called with a NULL argument. Corrected a comment to be consistent with the code. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi --- drivers/usb/gadget/g_ffs.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 2344efe4f4ce..e9540824e713 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -182,7 +182,6 @@ static __refdata struct usb_composite_driver gfs_driver = { static DEFINE_MUTEX(gfs_lock); static unsigned int missing_funcs; -static bool gfs_ether_setup; static bool gfs_registered; static bool gfs_single_func; static struct gfs_ffs_obj *ffs_tab; @@ -364,7 +363,6 @@ static int gfs_bind(struct usb_composite_dev *cdev) ret = PTR_ERR(the_dev); goto error_quick; } - gfs_ether_setup = true; ret = usb_string_ids_tab(cdev, gfs_strings); if (unlikely(ret < 0)) @@ -401,8 +399,8 @@ error_unbind: functionfs_unbind(ffs_tab[i].ffs_data); error: gether_cleanup(the_dev); + the_dev = NULL; error_quick: - gfs_ether_setup = false; return ret; } @@ -415,18 +413,17 @@ static int gfs_unbind(struct usb_composite_dev *cdev) ENTER(); + gether_cleanup(the_dev); + the_dev = NULL; + /* * We may have been called in an error recovery from * composite_bind() after gfs_unbind() failure so we need to - * check if gfs_ffs_data is not NULL since gfs_bind() handles + * check if instance's ffs_data is not NULL since gfs_bind() handles * all error recovery itself. I'd rather we werent called * from composite on orror recovery, but what you're gonna * do...? */ - if (gfs_ether_setup) - gether_cleanup(the_dev); - gfs_ether_setup = false; - for (i = func_num; i--; ) if (ffs_tab[i].ffs_data) functionfs_unbind(ffs_tab[i].ffs_data);