From dbc74c65b3fd841985935f676388c82d6b85c485 Mon Sep 17 00:00:00 2001 From: Vesa-Matti Kari Date: Thu, 7 Aug 2008 03:18:20 +0300 Subject: selinux: Unify for- and while-loop style Replace "thing != NULL" comparisons with just "thing" to make the code look more uniform (mixed styles were used even in the same source file). Signed-off-by: Vesa-Matti Kari Acked-by: Stephen Smalley Signed-off-by: James Morris --- security/selinux/ss/avtab.c | 2 +- security/selinux/ss/conditional.c | 16 ++++++++-------- security/selinux/ss/ebitmap.c | 4 ++-- security/selinux/ss/hashtab.c | 6 +++--- security/selinux/ss/services.c | 8 ++++---- security/selinux/ss/sidtab.c | 12 ++++++------ 6 files changed, 24 insertions(+), 24 deletions(-) diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c index e8ae812d6af..1215b8e47db 100644 --- a/security/selinux/ss/avtab.c +++ b/security/selinux/ss/avtab.c @@ -229,7 +229,7 @@ void avtab_destroy(struct avtab *h) for (i = 0; i < h->nslot; i++) { cur = h->htable[i]; - while (cur != NULL) { + while (cur) { temp = cur; cur = cur->next; kmem_cache_free(avtab_node_cachep, temp); diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c index f8c850a56ed..4a4e35cac22 100644 --- a/security/selinux/ss/conditional.c +++ b/security/selinux/ss/conditional.c @@ -29,7 +29,7 @@ static int cond_evaluate_expr(struct policydb *p, struct cond_expr *expr) int s[COND_EXPR_MAXDEPTH]; int sp = -1; - for (cur = expr; cur != NULL; cur = cur->next) { + for (cur = expr; cur; cur = cur->next) { switch (cur->expr_type) { case COND_BOOL: if (sp == (COND_EXPR_MAXDEPTH - 1)) @@ -97,14 +97,14 @@ int evaluate_cond_node(struct policydb *p, struct cond_node *node) if (new_state == -1) printk(KERN_ERR "SELinux: expression result was undefined - disabling all rules.\n"); /* turn the rules on or off */ - for (cur = node->true_list; cur != NULL; cur = cur->next) { + for (cur = node->true_list; cur; cur = cur->next) { if (new_state <= 0) cur->node->key.specified &= ~AVTAB_ENABLED; else cur->node->key.specified |= AVTAB_ENABLED; } - for (cur = node->false_list; cur != NULL; cur = cur->next) { + for (cur = node->false_list; cur; cur = cur->next) { /* -1 or 1 */ if (new_state) cur->node->key.specified &= ~AVTAB_ENABLED; @@ -128,7 +128,7 @@ int cond_policydb_init(struct policydb *p) static void cond_av_list_destroy(struct cond_av_list *list) { struct cond_av_list *cur, *next; - for (cur = list; cur != NULL; cur = next) { + for (cur = list; cur; cur = next) { next = cur->next; /* the avtab_ptr_t node is destroy by the avtab */ kfree(cur); @@ -139,7 +139,7 @@ static void cond_node_destroy(struct cond_node *node) { struct cond_expr *cur_expr, *next_expr; - for (cur_expr = node->expr; cur_expr != NULL; cur_expr = next_expr) { + for (cur_expr = node->expr; cur_expr; cur_expr = next_expr) { next_expr = cur_expr->next; kfree(cur_expr); } @@ -155,7 +155,7 @@ static void cond_list_destroy(struct cond_node *list) if (list == NULL) return; - for (cur = list; cur != NULL; cur = next) { + for (cur = list; cur; cur = next) { next = cur->next; cond_node_destroy(cur); } @@ -291,7 +291,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum goto err; } found = 0; - for (cur = other; cur != NULL; cur = cur->next) { + for (cur = other; cur; cur = cur->next) { if (cur->node == node_ptr) { found = 1; break; @@ -485,7 +485,7 @@ void cond_compute_av(struct avtab *ctab, struct avtab_key *key, struct av_decisi if (!ctab || !key || !avd) return; - for (node = avtab_search_node(ctab, key); node != NULL; + for (node = avtab_search_node(ctab, key); node; node = avtab_search_node_next(node, key->specified)) { if ((u16)(AVTAB_ALLOWED|AVTAB_ENABLED) == (node->key.specified & (AVTAB_ALLOWED|AVTAB_ENABLED))) diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c index ddc275490af..68c7348d1ac 100644 --- a/security/selinux/ss/ebitmap.c +++ b/security/selinux/ss/ebitmap.c @@ -109,7 +109,7 @@ int ebitmap_netlbl_export(struct ebitmap *ebmap, *catmap = c_iter; c_iter->startbit = e_iter->startbit & ~(NETLBL_CATMAP_SIZE - 1); - while (e_iter != NULL) { + while (e_iter) { for (i = 0; i < EBITMAP_UNIT_NUMS; i++) { unsigned int delta, e_startbit, c_endbit; @@ -197,7 +197,7 @@ int ebitmap_netlbl_import(struct ebitmap *ebmap, } } c_iter = c_iter->next; - } while (c_iter != NULL); + } while (c_iter); if (e_iter != NULL) ebmap->highbit = e_iter->startbit + EBITMAP_SIZE; else diff --git a/security/selinux/ss/hashtab.c b/security/selinux/ss/hashtab.c index 2e7788e1321..933e735bb18 100644 --- a/security/selinux/ss/hashtab.c +++ b/security/selinux/ss/hashtab.c @@ -81,7 +81,7 @@ void *hashtab_search(struct hashtab *h, const void *key) hvalue = h->hash_value(h, key); cur = h->htable[hvalue]; - while (cur != NULL && h->keycmp(h, key, cur->key) > 0) + while (cur && h->keycmp(h, key, cur->key) > 0) cur = cur->next; if (cur == NULL || (h->keycmp(h, key, cur->key) != 0)) @@ -100,7 +100,7 @@ void hashtab_destroy(struct hashtab *h) for (i = 0; i < h->size; i++) { cur = h->htable[i]; - while (cur != NULL) { + while (cur) { temp = cur; cur = cur->next; kfree(temp); @@ -127,7 +127,7 @@ int hashtab_map(struct hashtab *h, for (i = 0; i < h->size; i++) { cur = h->htable[i]; - while (cur != NULL) { + while (cur) { ret = apply(cur->key, cur->datum, args); if (ret) return ret; diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index b52f923ce68..5a0536bddc6 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -356,7 +356,7 @@ static int context_struct_compute_av(struct context *scontext, avkey.source_type = i + 1; avkey.target_type = j + 1; for (node = avtab_search_node(&policydb.te_avtab, &avkey); - node != NULL; + node; node = avtab_search_node_next(node, avkey.specified)) { if (node->key.specified == AVTAB_ALLOWED) avd->allowed |= node->datum.data; @@ -1037,7 +1037,7 @@ static int security_compute_sid(u32 ssid, /* If no permanent rule, also check for enabled conditional rules */ if (!avdatum) { node = avtab_search_node(&policydb.te_cond_avtab, &avkey); - for (; node != NULL; node = avtab_search_node_next(node, specified)) { + for (; node; node = avtab_search_node_next(node, specified)) { if (node->key.specified & AVTAB_ENABLED) { avdatum = &node->datum; break; @@ -2050,7 +2050,7 @@ int security_set_bools(int len, int *values) policydb.bool_val_to_struct[i]->state = 0; } - for (cur = policydb.cond_list; cur != NULL; cur = cur->next) { + for (cur = policydb.cond_list; cur; cur = cur->next) { rc = evaluate_cond_node(&policydb, cur); if (rc) goto out; @@ -2102,7 +2102,7 @@ static int security_preserve_bools(struct policydb *p) if (booldatum) booldatum->state = bvalues[i]; } - for (cur = p->cond_list; cur != NULL; cur = cur->next) { + for (cur = p->cond_list; cur; cur = cur->next) { rc = evaluate_cond_node(p, cur); if (rc) goto out; diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c index a81ded10412..e817989764c 100644 --- a/security/selinux/ss/sidtab.c +++ b/security/selinux/ss/sidtab.c @@ -43,7 +43,7 @@ int sidtab_insert(struct sidtab *s, u32 sid, struct context *context) hvalue = SIDTAB_HASH(sid); prev = NULL; cur = s->htable[hvalue]; - while (cur != NULL && sid > cur->sid) { + while (cur && sid > cur->sid) { prev = cur; cur = cur->next; } @@ -92,7 +92,7 @@ static struct context *sidtab_search_core(struct sidtab *s, u32 sid, int force) hvalue = SIDTAB_HASH(sid); cur = s->htable[hvalue]; - while (cur != NULL && sid > cur->sid) + while (cur && sid > cur->sid) cur = cur->next; if (force && cur && sid == cur->sid && cur->context.len) @@ -103,7 +103,7 @@ static struct context *sidtab_search_core(struct sidtab *s, u32 sid, int force) sid = SECINITSID_UNLABELED; hvalue = SIDTAB_HASH(sid); cur = s->htable[hvalue]; - while (cur != NULL && sid > cur->sid) + while (cur && sid > cur->sid) cur = cur->next; if (!cur || sid != cur->sid) return NULL; @@ -136,7 +136,7 @@ int sidtab_map(struct sidtab *s, for (i = 0; i < SIDTAB_SIZE; i++) { cur = s->htable[i]; - while (cur != NULL) { + while (cur) { rc = apply(cur->sid, &cur->context, args); if (rc) goto out; @@ -155,7 +155,7 @@ static inline u32 sidtab_search_context(struct sidtab *s, for (i = 0; i < SIDTAB_SIZE; i++) { cur = s->htable[i]; - while (cur != NULL) { + while (cur) { if (context_cmp(&cur->context, context)) return cur->sid; cur = cur->next; @@ -242,7 +242,7 @@ void sidtab_destroy(struct sidtab *s) for (i = 0; i < SIDTAB_SIZE; i++) { cur = s->htable[i]; - while (cur != NULL) { + while (cur) { temp = cur; cur = cur->next; context_destroy(&temp->context); -- cgit v1.2.3-18-g5258