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selinux: Remove redundant assignments

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Get rid of redundant assignments which end up in values not being
read either because they are overwritten or the function ends.

Reported by clang-tidy [deadcode.DeadStores]

Signed-off-by: Michal Orzel <michalorzel.eng@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Michal Orzel 2022-03-31 19:33:57 +02:00 committed by Paul Moore
parent 3123109284
commit 0a9876f36b
3 changed files with 2 additions and 4 deletions
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4
security/selinux/avc.c
View File

@ -1059,7 +1059,7 @@ int avc_has_extended_perms(struct selinux_state *state,
node = avc_lookup(state->avc, ssid, tsid, tclass);
if (unlikely(!node)) {
node = avc_compute_av(state, ssid, tsid, tclass, &avd, xp_node);
avc_compute_av(state, ssid, tsid, tclass, &avd, xp_node);
} else {
memcpy(&avd, &node->ae.avd, sizeof(avd));
xp_node = node->ae.xp_node;
@ -1151,7 +1151,7 @@ inline int avc_has_perm_noaudit(struct selinux_state *state,
node = avc_lookup(state->avc, ssid, tsid, tclass);
if (unlikely(!node))
node = avc_compute_av(state, ssid, tsid, tclass, avd, &xp_node);
avc_compute_av(state, ssid, tsid, tclass, avd, &xp_node);
else
memcpy(avd, &node->ae.avd, sizeof(*avd));

1
security/selinux/hooks.c
View File

@ -6487,7 +6487,6 @@ static int selinux_setprocattr(const char *name, void *value, size_t size)
goto abort_change;
/* Only allow single threaded processes to change context */
error = -EPERM;
if (!current_is_single_threaded()) {
error = security_bounded_transition(&selinux_state,
tsec->sid, sid);

1
security/selinux/ss/services.c
View File

@ -2980,7 +2980,6 @@ int security_fs_use(struct selinux_state *state, struct super_block *sb)
}
retry:
rc = 0;
rcu_read_lock();
policy = rcu_dereference(state->policy);
policydb = &policy->policydb;