diff options
| -rw-r--r-- | fs/proc/generic.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 9580abeadeb3..ce2d95477701 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -291,19 +291,17 @@ static const struct inode_operations proc_file_inode_operations = { * returns the struct proc_dir_entry for "/proc/tty/driver", and * returns "serial" in residual. */ -static int xlate_proc_name(const char *name, - struct proc_dir_entry **ret, const char **residual) +static int __xlate_proc_name(const char *name, struct proc_dir_entry **ret, + const char **residual) { const char *cp = name, *next; struct proc_dir_entry *de; int len; - int rtn = 0; de = *ret; if (!de) de = &proc_root; - spin_lock(&proc_subdir_lock); while (1) { next = strchr(cp, '/'); if (!next) @@ -314,17 +312,24 @@ static int xlate_proc_name(const char *name, if (proc_match(len, cp, de)) break; } - if (!de) { - rtn = -ENOENT; - goto out; - } + if (!de) + return -ENOENT; cp += len + 1; } *residual = cp; *ret = de; -out: + return 0; +} + +static int xlate_proc_name(const char *name, struct proc_dir_entry **ret, + const char **residual) +{ + int rv; + + spin_lock(&proc_subdir_lock); + rv = __xlate_proc_name(name, ret, residual); spin_unlock(&proc_subdir_lock); - return rtn; + return rv; } static DEFINE_IDA(proc_inum_ida); @@ -797,11 +802,13 @@ void remove_proc_entry(const char *name, struct proc_dir_entry *parent) const char *fn = name; int len; - if (xlate_proc_name(name, &parent, &fn) != 0) + spin_lock(&proc_subdir_lock); + if (__xlate_proc_name(name, &parent, &fn) != 0) { + spin_unlock(&proc_subdir_lock); return; + } len = strlen(fn); - spin_lock(&proc_subdir_lock); for (p = &parent->subdir; *p; p=&(*p)->next ) { if (proc_match(len, fn, *p)) { de = *p; |