[41/46] selinux: Move two assignments for the variable "rc" in roles_init()

Commit Message

SF Markus Elfring Jan. 15, 2017, 3:41 p.m. UTC

From: Markus Elfring <[e-mail]>
Date: Sun, 15 Jan 2017 12:40:35 +0100

One local variable was set to an error code in two cases before
a concrete error situation was detected. Thus move the corresponding
assignments into if branches to indicate a software failure there.

Signed-off-by: Markus Elfring <[e-mail]>
---
 security/selinux/ss/policydb.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

Comments

Paul Moore March 29, 2017, 3:40 p.m. UTC | #1

On Sun, Jan 15, 2017 at 10:41 AM, SF Markus Elfring
<[e-mail]> wrote:
> From: Markus Elfring <[e-mail]>
> Date: Sun, 15 Jan 2017 12:40:35 +0100
>
> One local variable was set to an error code in two cases before
> a concrete error situation was detected. Thus move the corresponding
> assignments into if branches to indicate a software failure there.
>
> Signed-off-by: Markus Elfring <[e-mail]>
> ---
>  security/selinux/ss/policydb.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)

Dropped for reasons previously discussed.

> diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
> index ccc146bfd4c2..be445abf047b 100644
> --- a/security/selinux/ss/policydb.c
> +++ b/security/selinux/ss/policydb.c
> @@ -182,15 +182,17 @@ static int roles_init(struct policydb *p)
>         if (!role)
>                 return -ENOMEM;
>
> -       rc = -EINVAL;
>         role->value = ++p->p_roles.nprim;
> -       if (role->value != OBJECT_R_VAL)
> +       if (role->value != OBJECT_R_VAL) {
> +               rc = -EINVAL;
>                 goto out;
> +       }
>
> -       rc = -ENOMEM;
>         key = kstrdup(OBJECT_R, GFP_KERNEL);
> -       if (!key)
> +       if (!key) {
> +               rc = -ENOMEM;
>                 goto out;
> +       }
>
>         rc = hashtab_insert(p->p_roles.table, key, role);
>         if (rc)
> --
> 2.11.0
>

Patch

diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index ccc146bfd4c2..be445abf047b 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -182,15 +182,17 @@  static int roles_init(struct policydb *p)
 	if (!role)
 		return -ENOMEM;
 
-	rc = -EINVAL;
 	role->value = ++p->p_roles.nprim;
-	if (role->value != OBJECT_R_VAL)
+	if (role->value != OBJECT_R_VAL) {
+		rc = -EINVAL;
 		goto out;
+	}
 
-	rc = -ENOMEM;
 	key = kstrdup(OBJECT_R, GFP_KERNEL);
-	if (!key)
+	if (!key) {
+		rc = -ENOMEM;
 		goto out;
+	}
 
 	rc = hashtab_insert(p->p_roles.table, key, role);
 	if (rc)