Commit 3b011b097c38 ("staging: r8188eu: limit rf register writes to
path a") limited the rtw_wx_write_rf function to write only rf registers
for path a.
The private ioctl 0x0B invokes the rtw_dbg_port function. This ioctl
can also be used for writing rf registers. We should limit these register
writes to rf path a as well.
Signed-off-by: Martin Kaiser <martin@xxxxxxxxx>
---
drivers/staging/r8188eu/os_dep/ioctl_linux.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
index 8c49df724461..9d3488c28048 100644
--- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
@@ -3621,7 +3621,11 @@ static int rtw_dbg_port(struct net_device *dev,
DBG_88E("read RF_reg path(0x%02x), offset(0x%x), value(0x%08x)\n", minor_cmd, arg, rtl8188e_PHY_QueryRFReg(padapter, minor_cmd, arg, 0xffffffff));
break;
case 0x75:/* write_rf */
- rtl8188e_PHY_SetRFReg(padapter, minor_cmd, arg, 0xffffffff, extra_arg);
+ if (minor_cmd != RF_PATH_A) {
+ ret = -EINVAL;
+ break;
+ }
+ rtl8188e_PHY_SetRFReg(padapter, RF_PATH_A, arg, 0xffffffff, extra_arg);
DBG_88E("write RF_reg path(0x%02x), offset(0x%x), value(0x%08x)\n", minor_cmd, arg, rtl8188e_PHY_QueryRFReg(padapter, minor_cmd, arg, 0xffffffff));
break;
--
2.30.2
