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flex_array: flex_array_prealloc takes a number of elements, not an end

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Change flex_array_prealloc to take the number of elements for which space
should be allocated instead of the last (inclusive) element. Users
and documentation are updated accordingly.  flex_arrays got introduced before
they had users.  When folks started using it, they ended up needing a
different API than was coded up originally.  This swaps over to the API that
folks apparently need.

Based-on-patch-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Tested-by: Chris Richards <gizmo@giz-works.com>
Acked-by: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: stable@kernel.org [2.6.38+]
This commit is contained in:
Eric Paris
2011-04-28 15:55:52 -04:00
parent cb1e922fa1
commit 5d30b10bd6
4 changed files with 14 additions and 11 deletions
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6
security/selinux/ss/policydb.c
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@@ -502,7 +502,7 @@ static int policydb_index(struct policydb *p)
goto out;
rc = flex_array_prealloc(p->type_val_to_struct_array, 0,
p->p_types.nprim - 1, GFP_KERNEL | __GFP_ZERO);
p->p_types.nprim, GFP_KERNEL | __GFP_ZERO);
if (rc)
goto out;
@@ -519,7 +519,7 @@ static int policydb_index(struct policydb *p)
goto out;
rc = flex_array_prealloc(p->sym_val_to_name[i],
0, p->symtab[i].nprim - 1,
0, p->symtab[i].nprim,
GFP_KERNEL | __GFP_ZERO);
if (rc)
goto out;
@@ -2375,7 +2375,7 @@ int policydb_read(struct policydb *p, void *fp)
goto bad;
/* preallocate so we don't have to worry about the put ever failing */
rc = flex_array_prealloc(p->type_attr_map_array, 0, p->p_types.nprim - 1,
rc = flex_array_prealloc(p->type_attr_map_array, 0, p->p_types.nprim,
GFP_KERNEL | __GFP_ZERO);
if (rc)
goto bad;