[PATCH Linux-next] ioctl_linux: fix a potential NULL pointer dereference bug

[cgel . zte]

From: xu xin <xu.xin16@xxxxxxxxxx>

The pointer might be NULL, but it is dereferenced.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: xu xin <xu.xin16@xxxxxxxxxx>
---
 drivers/staging/r8188eu/os_dep/ioctl_linux.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
index a3e6d761e748..ce4ce9190f5f 100644
--- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
@@ -4389,7 +4389,8 @@ static int rtw_dbg_port(struct net_device *dev,
 				pregpriv->rx_stbc = extra_arg;
 				DBG_88E("set rx_stbc =%d\n", pregpriv->rx_stbc);
 			} else {
-				DBG_88E("get rx_stbc =%d\n", pregpriv->rx_stbc);
+				if (pregpriv)
+					DBG_88E("get rx_stbc =%d\n", pregpriv->rx_stbc);
 			}
 		}
 			break;
@@ -4401,7 +4402,8 @@ static int rtw_dbg_port(struct net_device *dev,
 				pregpriv->ampdu_enable = extra_arg;
 				DBG_88E("set ampdu_enable =%d\n", pregpriv->ampdu_enable);
 			} else {
-				DBG_88E("get ampdu_enable =%d\n", pregpriv->ampdu_enable);
+				if (pregpriv)
+					DBG_88E("get ampdu_enable =%d\n", pregpriv->ampdu_enable);
 			}
 		}
 			break;
-- 
2.25.1