* ==FILEVERSION 20041108==
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/list.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/netdevice.h>
#include <linux/poll.h>
#include <linux/ppp_defs.h>
void *ptr[CARDMAP_WIDTH];
};
static void *cardmap_get(struct cardmap *map, unsigned int nr);
-static void cardmap_set(struct cardmap **map, unsigned int nr, void *ptr);
+static int cardmap_set(struct cardmap **map, unsigned int nr, void *ptr);
static unsigned int cardmap_find_first_free(struct cardmap *map);
static void cardmap_destroy(struct cardmap **map);
{
struct channel *pch;
- pch = kmalloc(sizeof(struct channel), GFP_KERNEL);
+ pch = kzalloc(sizeof(struct channel), GFP_KERNEL);
if (pch == 0)
return -ENOMEM;
- memset(pch, 0, sizeof(struct channel));
pch->ppp = NULL;
pch->chan = chan;
chan->ppp = pch;
int ret = -ENOMEM;
int i;
- ppp = kmalloc(sizeof(struct ppp), GFP_KERNEL);
+ ppp = kzalloc(sizeof(struct ppp), GFP_KERNEL);
if (!ppp)
goto out;
dev = alloc_netdev(0, "", ppp_setup);
if (!dev)
goto out1;
- memset(ppp, 0, sizeof(struct ppp));
ppp->mru = PPP_MRU;
init_ppp_file(&ppp->file, INTERFACE);
}
atomic_inc(&ppp_unit_count);
- cardmap_set(&all_ppp_units, unit, ppp);
+ ret = cardmap_set(&all_ppp_units, unit, ppp);
+ if (ret != 0)
+ goto out3;
+
mutex_unlock(&all_ppp_mutex);
*retp = 0;
return ppp;
+out3:
+ atomic_dec(&ppp_unit_count);
out2:
mutex_unlock(&all_ppp_mutex);
free_netdev(dev);
cardmap_destroy(&all_ppp_units);
if (unregister_chrdev(PPP_MAJOR, "ppp") != 0)
printk(KERN_ERR "PPP: failed to unregister PPP device\n");
- devfs_remove("ppp");
class_device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0));
class_destroy(ppp_class);
}
return NULL;
}
-static void cardmap_set(struct cardmap **pmap, unsigned int nr, void *ptr)
+static int cardmap_set(struct cardmap **pmap, unsigned int nr, void *ptr)
{
struct cardmap *p;
int i;
if (p == NULL || (nr >> p->shift) >= CARDMAP_WIDTH) {
do {
/* need a new top level */
- struct cardmap *np = kmalloc(sizeof(*np), GFP_KERNEL);
- memset(np, 0, sizeof(*np));
+ struct cardmap *np = kzalloc(sizeof(*np), GFP_KERNEL);
+ if (!np)
+ goto enomem;
np->ptr[0] = p;
if (p != NULL) {
np->shift = p->shift + CARDMAP_ORDER;
while (p->shift > 0) {
i = (nr >> p->shift) & CARDMAP_MASK;
if (p->ptr[i] == NULL) {
- struct cardmap *np = kmalloc(sizeof(*np), GFP_KERNEL);
- memset(np, 0, sizeof(*np));
+ struct cardmap *np = kzalloc(sizeof(*np), GFP_KERNEL);
+ if (!np)
+ goto enomem;
np->shift = p->shift - CARDMAP_ORDER;
np->parent = p;
p->ptr[i] = np;
set_bit(i, &p->inuse);
else
clear_bit(i, &p->inuse);
+ return 0;
+ enomem:
+ return -ENOMEM;
}
static unsigned int cardmap_find_first_free(struct cardmap *map)