Revision cc54874055c007cd599138a394d1f039e4e0764b authored by Linus Torvalds on 03 June 2017, 15:42:30 UTC, committed by Linus Torvalds on 03 June 2017, 15:42:30 UTC
Pull MTD fixes from Brian Norris: "NAND updates from Boris: tango fixes: - Add missing MODULE_DEVICE_TABLE() in tango_nand.c - Update the number of corrected bitflips core fixes: - Fix a long standing memory leak in nand_scan_tail() - Fix several bugs introduced by the per-vendor init/detection infrastructure (introduced in 4.12) - Add a static specifier to nand_ooblayout_lp_hamming_ops definition" * tag 'for-linus-20170602' of git://git.infradead.org/linux-mtd: mtd: nand: make nand_ooblayout_lp_hamming_ops static mtd: nand: tango: Update ecc_stats.corrected mtd: nand: tango: Export OF device ID table as module aliases mtd: nand: samsung: warn about un-parseable ECC info mtd: nand: free vendor-specific resources in init failure paths mtd: nand: drop unneeded module.h include mtd: nand: don't leak buffers when ->scan_bbt() fails
rose_loopback.c
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
*/
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/timer.h>
#include <net/ax25.h>
#include <linux/skbuff.h>
#include <net/rose.h>
#include <linux/init.h>
static struct sk_buff_head loopback_queue;
static struct timer_list loopback_timer;
static void rose_set_loopback_timer(void);
void rose_loopback_init(void)
{
skb_queue_head_init(&loopback_queue);
init_timer(&loopback_timer);
}
static int rose_loopback_running(void)
{
return timer_pending(&loopback_timer);
}
int rose_loopback_queue(struct sk_buff *skb, struct rose_neigh *neigh)
{
struct sk_buff *skbn;
skbn = skb_clone(skb, GFP_ATOMIC);
kfree_skb(skb);
if (skbn != NULL) {
skb_queue_tail(&loopback_queue, skbn);
if (!rose_loopback_running())
rose_set_loopback_timer();
}
return 1;
}
static void rose_loopback_timer(unsigned long);
static void rose_set_loopback_timer(void)
{
del_timer(&loopback_timer);
loopback_timer.data = 0;
loopback_timer.function = &rose_loopback_timer;
loopback_timer.expires = jiffies + 10;
add_timer(&loopback_timer);
}
static void rose_loopback_timer(unsigned long param)
{
struct sk_buff *skb;
struct net_device *dev;
rose_address *dest;
struct sock *sk;
unsigned short frametype;
unsigned int lci_i, lci_o;
while ((skb = skb_dequeue(&loopback_queue)) != NULL) {
if (skb->len < ROSE_MIN_LEN) {
kfree_skb(skb);
continue;
}
lci_i = ((skb->data[0] << 8) & 0xF00) + ((skb->data[1] << 0) & 0x0FF);
frametype = skb->data[2];
if (frametype == ROSE_CALL_REQUEST &&
(skb->len <= ROSE_CALL_REQ_FACILITIES_OFF ||
skb->data[ROSE_CALL_REQ_ADDR_LEN_OFF] !=
ROSE_CALL_REQ_ADDR_LEN_VAL)) {
kfree_skb(skb);
continue;
}
dest = (rose_address *)(skb->data + ROSE_CALL_REQ_DEST_ADDR_OFF);
lci_o = ROSE_DEFAULT_MAXVC + 1 - lci_i;
skb_reset_transport_header(skb);
sk = rose_find_socket(lci_o, rose_loopback_neigh);
if (sk) {
if (rose_process_rx_frame(sk, skb) == 0)
kfree_skb(skb);
continue;
}
if (frametype == ROSE_CALL_REQUEST) {
if ((dev = rose_dev_get(dest)) != NULL) {
if (rose_rx_call_request(skb, dev, rose_loopback_neigh, lci_o) == 0)
kfree_skb(skb);
} else {
kfree_skb(skb);
}
} else {
kfree_skb(skb);
}
}
}
void __exit rose_loopback_clear(void)
{
struct sk_buff *skb;
del_timer(&loopback_timer);
while ((skb = skb_dequeue(&loopback_queue)) != NULL) {
skb->sk = NULL;
kfree_skb(skb);
}
}
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