diff options
| -rw-r--r-- | locale/duplocale.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/locale/duplocale.c b/locale/duplocale.c index a755ac5c36..bad476700f 100644 --- a/locale/duplocale.c +++ b/locale/duplocale.c @@ -43,6 +43,11 @@ __duplocale (locale_t dataset) int cnt; size_t names_len = 0; + /* If dataset points to _nl_global_locale, we need to prevent other + threads from modifying it. We also modify global data below (the + usage counts). */ + __libc_rwlock_wrlock (__libc_setlocale_lock); + /* Calculate the total space we need to store all the names. */ for (cnt = 0; cnt < __LC_LAST; ++cnt) if (cnt != LC_ALL && dataset->__names[cnt] != _nl_C_name) @@ -55,9 +60,6 @@ __duplocale (locale_t dataset) { char *namep = (char *) (result + 1); - /* We modify global data (the usage counts). */ - __libc_rwlock_wrlock (__libc_setlocale_lock); - for (cnt = 0; cnt < __LC_LAST; ++cnt) if (cnt != LC_ALL) { @@ -78,11 +80,11 @@ __duplocale (locale_t dataset) result->__ctype_b = dataset->__ctype_b; result->__ctype_tolower = dataset->__ctype_tolower; result->__ctype_toupper = dataset->__ctype_toupper; - - /* It's done. */ - __libc_rwlock_unlock (__libc_setlocale_lock); } + /* It's done. */ + __libc_rwlock_unlock (__libc_setlocale_lock); + return result; } weak_alias (__duplocale, duplocale) |