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Revision e702ff0ba6f7b52021f26e0e14237eb6ca8a1b6f authored by Tilman Schmidt on 26 January 2007, 08:56:56 UTC, committed by Linus Torvalds on 26 January 2007, 21:50:58 UTC 
[PATCH] Gigaset ISDN driver error handling fixes
 
Fix several flaws in the error handling of the Siemens Gigaset ISDN driver,
including one that would cause an Oops when connecting more than one device
of the same type.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent e4233de
Raw File
utsname.h 
#ifndef _LINUX_UTSNAME_H
#define _LINUX_UTSNAME_H

#define __OLD_UTS_LEN 8

struct oldold_utsname {
	char sysname[9];
	char nodename[9];
	char release[9];
	char version[9];
	char machine[9];
};

#define __NEW_UTS_LEN 64

struct old_utsname {
	char sysname[65];
	char nodename[65];
	char release[65];
	char version[65];
	char machine[65];
};

struct new_utsname {
	char sysname[65];
	char nodename[65];
	char release[65];
	char version[65];
	char machine[65];
	char domainname[65];
};

#ifdef __KERNEL__

#include <linux/sched.h>
#include <linux/kref.h>
#include <linux/nsproxy.h>
#include <asm/atomic.h>

struct uts_namespace {
	struct kref kref;
	struct new_utsname name;
};
extern struct uts_namespace init_uts_ns;

static inline void get_uts_ns(struct uts_namespace *ns)
{
	kref_get(&ns->kref);
}

#ifdef CONFIG_UTS_NS
extern int unshare_utsname(unsigned long unshare_flags,
				struct uts_namespace **new_uts);
extern int copy_utsname(int flags, struct task_struct *tsk);
extern void free_uts_ns(struct kref *kref);

static inline void put_uts_ns(struct uts_namespace *ns)
{
	kref_put(&ns->kref, free_uts_ns);
}
#else
static inline int unshare_utsname(unsigned long unshare_flags,
			struct uts_namespace **new_uts)
{
	if (unshare_flags & CLONE_NEWUTS)
		return -EINVAL;

	return 0;
}

static inline int copy_utsname(int flags, struct task_struct *tsk)
{
	return 0;
}
static inline void put_uts_ns(struct uts_namespace *ns)
{
}
#endif

static inline struct new_utsname *utsname(void)
{
	return &current->nsproxy->uts_ns->name;
}

static inline struct new_utsname *init_utsname(void)
{
	return &init_uts_ns.name;
}

extern struct rw_semaphore uts_sem;

#endif /* __KERNEL__ */

#endif /* _LINUX_UTSNAME_H */
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