staging: rtl8188eu: clean up usb_read32

Remove unnecessary variable, summarize declaration and assignment.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210406204829.18130-7-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
index 915bf86..beab534 100644 (file)
--- a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
@@ -316,14 +316,10 @@ u16 usb_read16(struct adapter *adapter, u32 addr)
 
 u32 usb_read32(struct adapter *adapter, u32 addr)
 {
-       u16 wvalue;
-       u16 len;
+       u16 wvalue = (u16)(addr & 0xffff);
        __le32 data;
 
-       wvalue = (u16)(addr & 0x0000ffff);
-       len = 4;
-
-       usbctrl_vendorreq(adapter, wvalue, &data, len, REALTEK_USB_VENQT_READ);
+       usbctrl_vendorreq(adapter, wvalue, &data, 4, REALTEK_USB_VENQT_READ);
 
        return le32_to_cpu(data);
 }