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https://github.com/Mange/rtl8192eu-linux-driver
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clean up the usb_writeN
Remove unnecessary variables, check the length. Link: https://lore.kernel.org/r/20210821164859.4351-8-martin@kaiser.cx
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@ -414,24 +414,15 @@ int usb_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
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int usb_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata)
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int usb_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata)
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{
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{
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u8 requesttype;
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u16 wvalue = (u16)(addr & 0x0000ffff);
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u16 wvalue;
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u16 index;
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u16 len;
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u8 buf[VENDOR_CMD_MAX_DATA_LEN] = {0};
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u8 buf[VENDOR_CMD_MAX_DATA_LEN] = {0};
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int ret;
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if (length > VENDOR_CMD_MAX_DATA_LEN)
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return -EINVAL;
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requesttype = 0x00;/* write_out */
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memcpy(buf, pdata, length);
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index = 0;/* n/a */
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return usbctrl_vendorreq(pintfhdl, wvalue, 0, buf, (length & 0xffff), VENDOR_WRITE);
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wvalue = (u16)(addr & 0x0000ffff);
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len = length;
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_rtw_memcpy(buf, pdata, len);
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ret = usbctrl_vendorreq(pintfhdl, wvalue, index, buf, len, requesttype);
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return ret;
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}
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}
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void usb_set_intf_ops(_adapter *padapter, struct _io_ops *pops)
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void usb_set_intf_ops(_adapter *padapter, struct _io_ops *pops)
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