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usb: gadget: remove incorrect __init/__exit annotations

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A recent change introduced a link error for the composite
printer gadget driver:

`printer_unbind' referenced in section `.ref.data' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o

Evidently the unbind function should not be marked __exit here,
because it is called through a callback pointer that is not necessarily
discarded, __composite_unbind() is indeed called from the error path of
composite_bind(), which can never work for a built-in driver.

Looking at the surrounding code, I found the same problem in all other
composite gadget drivers in both the bind and unbind functions, as
well as the udc platform driver 'remove' functions. Those will break
if anyone uses the 'unbind' sysfs attribute to detach a device from a
built-in driver.

This patch removes the incorrect annotations from all the gadget
drivers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Arnd Bergmann
2015-04-11 00:14:21 +02:00
committed by Felipe Balbi
parent 197d0bdf8b
commit c94e289f19
23 changed files with 78 additions and 78 deletions
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4
drivers/usb/gadget/legacy/zero.c
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@@ -272,7 +272,7 @@ static struct usb_function_instance *func_inst_lb;
module_param_named(qlen, gzero_options.qlen, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(qlen, "depth of loopback queue");
static int __init zero_bind(struct usb_composite_dev *cdev)
static int zero_bind(struct usb_composite_dev *cdev)
{
struct f_ss_opts *ss_opts;
struct f_lb_opts *lb_opts;
@@ -400,7 +400,7 @@ static int zero_unbind(struct usb_composite_dev *cdev)
return 0;
}
static __refdata struct usb_composite_driver zero_driver = {
static struct usb_composite_driver zero_driver = {
.name = "zero",
.dev = &device_desc,
.strings = dev_strings,