64df6d525f
The function x25_init is not properly unregister related resources on error handler.It is will result in kernel oops if x25_init init failed, so add properly unregister call on error handler. Also, i adjust the coding style and make x25_register_sysctl properly return failure. Signed-off-by: linzhang <xiaolou4617@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
88 lines
2 KiB
C
88 lines
2 KiB
C
/* -*- linux-c -*-
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* sysctl_net_x25.c: sysctl interface to net X.25 subsystem.
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*
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* Begun April 1, 1996, Mike Shaver.
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* Added /proc/sys/net/x25 directory entry (empty =) ). [MS]
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*/
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#include <linux/sysctl.h>
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#include <linux/skbuff.h>
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#include <linux/socket.h>
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#include <linux/netdevice.h>
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#include <linux/init.h>
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#include <net/x25.h>
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static int min_timer[] = { 1 * HZ };
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static int max_timer[] = { 300 * HZ };
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static struct ctl_table_header *x25_table_header;
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static struct ctl_table x25_table[] = {
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{
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.procname = "restart_request_timeout",
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.data = &sysctl_x25_restart_request_timeout,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_timer,
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.extra2 = &max_timer,
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},
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{
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.procname = "call_request_timeout",
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.data = &sysctl_x25_call_request_timeout,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_timer,
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.extra2 = &max_timer,
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},
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{
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.procname = "reset_request_timeout",
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.data = &sysctl_x25_reset_request_timeout,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_timer,
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.extra2 = &max_timer,
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},
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{
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.procname = "clear_request_timeout",
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.data = &sysctl_x25_clear_request_timeout,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_timer,
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.extra2 = &max_timer,
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},
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{
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.procname = "acknowledgement_hold_back_timeout",
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.data = &sysctl_x25_ack_holdback_timeout,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_timer,
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.extra2 = &max_timer,
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},
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{
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.procname = "x25_forward",
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.data = &sysctl_x25_forward,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec,
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},
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{ },
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};
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int __init x25_register_sysctl(void)
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{
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x25_table_header = register_net_sysctl(&init_net, "net/x25", x25_table);
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if (!x25_table_header)
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return -ENOMEM;
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return 0;
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}
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void x25_unregister_sysctl(void)
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{
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unregister_net_sysctl_table(x25_table_header);
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}
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