[PATCH v1 1/1] usg: gadget: Move validation out of lock in webusb_bcdVersion_store()

From: Andy Shevchenko
Date: Fri Jan 27 2023 - 06:28:45 EST


Validation has nothing to do with any protected data,
move it out of the lock and make code neater.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/usb/gadget/configfs.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 63dc15b4f6d8..1346b330b358 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -836,19 +836,15 @@ static ssize_t webusb_bcdVersion_store(struct config_item *item,
if (ret)
return ret;

- mutex_lock(&gi->lock);
-
ret = is_valid_bcd(bcdVersion);
if (ret)
- goto out;
+ return ret;

+ mutex_lock(&gi->lock);
gi->bcd_webusb_version = bcdVersion;
- ret = len;
-
-out:
mutex_unlock(&gi->lock);

- return ret;
+ return len;
}

static ssize_t webusb_bVendorCode_show(struct config_item *item, char *page)
--
2.39.0