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usb: gadget: configfs: use to_usb_function_instance() in cfg (un)link func

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[ Upstream commit 5284acccc4a501f38dbeceabaa0340401c107654 ]

replace open-coded container_of() with to_usb_function_instance() helper.

Reviewed-by: Jack Pham <quic_jackp@quicinc.com>
Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com>
Link: https://lore.kernel.org/r/1637211213-16400-5-git-send-email-quic_linyyuan@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 89e7252d6c7e ("usb: gadget: configfs: Restrict symlink creation is UDC already binded")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Linyu Yuan 2021-11-18 12:53:33 +08:00 committed by Greg Kroah-Hartman
parent c955f9cf75
commit 3d0127aca1
1 changed files with 4 additions and 6 deletions
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10
drivers/usb/gadget/configfs.c
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@ -416,9 +416,8 @@ static int config_usb_cfg_link(
struct usb_composite_dev *cdev = cfg->c.cdev;
struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev);
struct config_group *group = to_config_group(usb_func_ci);
struct usb_function_instance *fi = container_of(group,
struct usb_function_instance, group);
struct usb_function_instance *fi =
to_usb_function_instance(usb_func_ci);
struct usb_function_instance *a_fi;
struct usb_function *f;
int ret;
@ -467,9 +466,8 @@ static void config_usb_cfg_unlink(
struct usb_composite_dev *cdev = cfg->c.cdev;
struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev);
struct config_group *group = to_config_group(usb_func_ci);
struct usb_function_instance *fi = container_of(group,
struct usb_function_instance, group);
struct usb_function_instance *fi =
to_usb_function_instance(usb_func_ci);
struct usb_function *f;
/*