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[RESEND] net: core: devlink: use right genl user_ptr when handling port param get/set

Message ID 20210118173954.17530-1-vadym.kochan@plvision.eu
State New
Headers show
Series [RESEND] net: core: devlink: use right genl user_ptr when handling port param get/set | expand

Commit Message

Vadym Kochan Jan. 18, 2021, 5:39 p.m. UTC 
From: Oleksandr Mazur <oleksandr.mazur@plvision.eu>

Fix incorrect user_ptr dereferencing when handling port param get/set:

    idx [0] stores the 'struct devlink' pointer;
    idx [1] stores the 'struct devlink_port' pointer;

Fixes: f4601dee25d5 ("devlink: Add port param get command")
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
---
1) Fixed plvision.com -> plvision.eu

 net/core/devlink.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/net/core/devlink.c b/net/core/devlink.c
index ee828e4b1007..738d4344d679 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4146,7 +4146,7 @@  static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg,
 static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb,
 					      struct genl_info *info)
 {
-	struct devlink_port *devlink_port = info->user_ptr[0];
+	struct devlink_port *devlink_port = info->user_ptr[1];
 	struct devlink_param_item *param_item;
 	struct sk_buff *msg;
 	int err;
@@ -4175,7 +4175,7 @@  static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb,
 static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb,
 					      struct genl_info *info)
 {
-	struct devlink_port *devlink_port = info->user_ptr[0];
+	struct devlink_port *devlink_port = info->user_ptr[1];
 
 	return __devlink_nl_cmd_param_set_doit(devlink_port->devlink,
 					       devlink_port->index,