[PATCH 1/2] tcmu: Fix some memory corruption

[Dan Carpenter]

"udev->nl_reply_supported" is an int but on 64 bit arches we are writing
8 bytes of data to it so it corrupts four bytes beyond the end of the
struct.

Fixes: b849b4567549 ("target: Add netlink command reply supported option for 
each device")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/target/target_core_user.c 
b/drivers/target/target_core_user.c
index 3be4c9696d19..07f2d95f7ae7 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1724,11 +1724,10 @@ static ssize_t tcmu_set_configfs_dev_params(struct 
se_device *dev,
                                ret = -ENOMEM;
                                break;
                        }
-                       ret = kstrtol(arg_p, 0,
-                                       (long int *) &udev->nl_reply_supported);
+                       ret = kstrtoint(arg_p, 0, &udev->nl_reply_supported);
                        kfree(arg_p);
                        if (ret < 0)
-                               pr_err("kstrtoul() failed for 
nl_reply_supported=\n");
+                               pr_err("kstrtoint() failed for 
nl_reply_supported=\n");
                        break;
                default:
                        break;