[36/46] selinux: Move an assignment for the variable "rc" in mls_read_range_helper()
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Message ID 02c3392e-3507-4d91-a8c0-6d933a034058@users.sourceforge.net
State New
Headers show

Commit Message

SF Markus Elfring Jan. 15, 2017, 3:36 p.m. UTC
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 15 Jan 2017 11:22:23 +0100

A local variable was set to an error code in one case before a concrete
error situation was detected. Thus move the corresponding assignment into
an if branch to indicate a software failure there.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 security/selinux/ss/policydb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Paul Moore March 29, 2017, 3:32 p.m. UTC | #1
On Sun, Jan 15, 2017 at 10:36 AM, SF Markus Elfring
<elfring@users.sourceforge.net> wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sun, 15 Jan 2017 11:22:23 +0100
>
> A local variable was set to an error code in one case before a concrete
> error situation was detected. Thus move the corresponding assignment into
> an if branch to indicate a software failure there.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  security/selinux/ss/policydb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Dropped as previously discussed.

> diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
> index 9b595f2e0d9f..7cf635c650dc 100644
> --- a/security/selinux/ss/policydb.c
> +++ b/security/selinux/ss/policydb.c
> @@ -996,10 +996,10 @@ static int mls_read_range_helper(struct mls_range *r, void *fp)
>         if (rc)
>                 goto out;
>
> -       rc = -EINVAL;
>         items = le32_to_cpu(buf[0]);
>         if (items > ARRAY_SIZE(buf)) {
>                 printk(KERN_ERR "SELinux: mls:  range overflow\n");
> +               rc = -EINVAL;
>                 goto out;
>         }
>
> --
> 2.11.0
>

Patch
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diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 9b595f2e0d9f..7cf635c650dc 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -996,10 +996,10 @@  static int mls_read_range_helper(struct mls_range *r, void *fp)
 	if (rc)
 		goto out;
 
-	rc = -EINVAL;
 	items = le32_to_cpu(buf[0]);
 	if (items > ARRAY_SIZE(buf)) {
 		printk(KERN_ERR "SELinux: mls:  range overflow\n");
+		rc = -EINVAL;
 		goto out;
 	}