[PATCH] Make attributes names const char *
sysfs: make attributes and attribute_group's names const char *
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 3a413f7..5febd6d 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -40,9 +40,7 @@
struct kobject kobj;
struct ib_device *ibdev;
struct attribute_group gid_group;
- struct attribute **gid_attr;
struct attribute_group pkey_group;
- struct attribute **pkey_attr;
u8 port_num;
};
@@ -60,8 +58,9 @@
struct port_attribute port_attr_##_name = __ATTR_RO(_name)
struct port_table_attribute {
- struct port_attribute attr;
- int index;
+ struct port_attribute attr;
+ char name[8];
+ int index;
};
static ssize_t port_attr_show(struct kobject *kobj,
@@ -398,17 +397,16 @@
struct attribute *a;
int i;
- for (i = 0; (a = p->gid_attr[i]); ++i) {
- kfree(a->name);
+ for (i = 0; (a = p->gid_group.attrs[i]); ++i)
kfree(a);
- }
- for (i = 0; (a = p->pkey_attr[i]); ++i) {
- kfree(a->name);
+ kfree(p->gid_group.attrs);
+
+ for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
kfree(a);
- }
- kfree(p->gid_attr);
+ kfree(p->pkey_group.attrs);
+
kfree(p);
}
@@ -449,58 +447,45 @@
return 0;
}
-static int alloc_group(struct attribute ***attr,
- ssize_t (*show)(struct ib_port *,
- struct port_attribute *, char *buf),
- int len)
+static struct attribute **
+alloc_group_attrs(ssize_t (*show)(struct ib_port *,
+ struct port_attribute *, char *buf),
+ int len)
{
- struct port_table_attribute ***tab_attr =
- (struct port_table_attribute ***) attr;
+ struct attribute **tab_attr;
+ struct port_table_attribute *element;
int i;
- int ret;
- *tab_attr = kmalloc((1 + len) * sizeof *tab_attr, GFP_KERNEL);
- if (!*tab_attr)
- return -ENOMEM;
+ tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL);
+ if (!tab_attr)
+ return NULL;
- memset(*tab_attr, 0, (1 + len) * sizeof *tab_attr);
-
- for (i = 0; i < len; ++i) {
- (*tab_attr)[i] = kmalloc(sizeof *(*tab_attr)[i], GFP_KERNEL);
- if (!(*tab_attr)[i]) {
- ret = -ENOMEM;
+ for (i = 0; i < len; i++) {
+ element = kcalloc(1, sizeof(struct port_table_attribute),
+ GFP_KERNEL);
+ if (!element)
goto err;
- }
- memset((*tab_attr)[i], 0, sizeof *(*tab_attr)[i]);
- (*tab_attr)[i]->attr.attr.name = kmalloc(8, GFP_KERNEL);
- if (!(*tab_attr)[i]->attr.attr.name) {
- ret = -ENOMEM;
- goto err;
- }
- if (snprintf((*tab_attr)[i]->attr.attr.name, 8, "%d", i) >= 8) {
- ret = -ENOMEM;
+ if (snprintf(element->name, sizeof(element->name),
+ "%d", i) >= sizeof(element->name))
goto err;
- }
- (*tab_attr)[i]->attr.attr.mode = S_IRUGO;
- (*tab_attr)[i]->attr.attr.owner = THIS_MODULE;
- (*tab_attr)[i]->attr.show = show;
- (*tab_attr)[i]->index = i;
+ element->attr.attr.name = element->name;
+ element->attr.attr.mode = S_IRUGO;
+ element->attr.attr.owner = THIS_MODULE;
+ element->attr.show = show;
+ element->index = i;
+
+ tab_attr[i] = &element->attr.attr;
}
- return 0;
+ return tab_attr;
err:
- for (i = 0; i < len; ++i) {
- if ((*tab_attr)[i])
- kfree((*tab_attr)[i]->attr.attr.name);
- kfree((*tab_attr)[i]);
- }
-
- kfree(*tab_attr);
-
- return ret;
+ while (--i >= 0)
+ kfree(tab_attr[i]);
+ kfree(tab_attr);
+ return NULL;
}
static int add_port(struct ib_device *device, int port_num)
@@ -541,23 +526,20 @@
if (ret)
goto err_put;
- ret = alloc_group(&p->gid_attr, show_port_gid, attr.gid_tbl_len);
- if (ret)
- goto err_remove_pma;
-
p->gid_group.name = "gids";
- p->gid_group.attrs = p->gid_attr;
+ p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len);
+ if (!p->gid_group.attrs)
+ goto err_remove_pma;
ret = sysfs_create_group(&p->kobj, &p->gid_group);
if (ret)
goto err_free_gid;
- ret = alloc_group(&p->pkey_attr, show_port_pkey, attr.pkey_tbl_len);
- if (ret)
- goto err_remove_gid;
-
p->pkey_group.name = "pkeys";
- p->pkey_group.attrs = p->pkey_attr;
+ p->pkey_group.attrs = alloc_group_attrs(show_port_pkey,
+ attr.pkey_tbl_len);
+ if (!p->pkey_group.attrs)
+ goto err_remove_gid;
ret = sysfs_create_group(&p->kobj, &p->pkey_group);
if (ret)
@@ -568,23 +550,19 @@
return 0;
err_free_pkey:
- for (i = 0; i < attr.pkey_tbl_len; ++i) {
- kfree(p->pkey_attr[i]->name);
- kfree(p->pkey_attr[i]);
- }
+ for (i = 0; i < attr.pkey_tbl_len; ++i)
+ kfree(p->pkey_group.attrs[i]);
- kfree(p->pkey_attr);
+ kfree(p->pkey_group.attrs);
err_remove_gid:
sysfs_remove_group(&p->kobj, &p->gid_group);
err_free_gid:
- for (i = 0; i < attr.gid_tbl_len; ++i) {
- kfree(p->gid_attr[i]->name);
- kfree(p->gid_attr[i]);
- }
+ for (i = 0; i < attr.gid_tbl_len; ++i)
+ kfree(p->gid_group.attrs[i]);
- kfree(p->gid_attr);
+ kfree(p->gid_group.attrs);
err_remove_pma:
sysfs_remove_group(&p->kobj, &pma_group);