diff options
Diffstat (limited to 'arch/sparc')
-rw-r--r-- | arch/sparc/kernel/sys_sparc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c index 94ff58c9d4a9..896863fb208a 100644 --- a/arch/sparc/kernel/sys_sparc.c +++ b/arch/sparc/kernel/sys_sparc.c | |||
@@ -470,19 +470,21 @@ asmlinkage int sys_getdomainname(char __user *name, int len) | |||
470 | { | 470 | { |
471 | int nlen, err; | 471 | int nlen, err; |
472 | 472 | ||
473 | if (len < 0 || len > __NEW_UTS_LEN) | 473 | if (len < 0) |
474 | return -EINVAL; | 474 | return -EINVAL; |
475 | 475 | ||
476 | down_read(&uts_sem); | 476 | down_read(&uts_sem); |
477 | 477 | ||
478 | nlen = strlen(system_utsname.domainname) + 1; | 478 | nlen = strlen(system_utsname.domainname) + 1; |
479 | if (nlen < len) | 479 | err = -EINVAL; |
480 | len = nlen; | 480 | if (nlen > len) |
481 | goto out; | ||
481 | 482 | ||
482 | err = -EFAULT; | 483 | err = -EFAULT; |
483 | if (!copy_to_user(name, system_utsname.domainname, len)) | 484 | if (!copy_to_user(name, system_utsname.domainname, nlen)) |
484 | err = 0; | 485 | err = 0; |
485 | 486 | ||
487 | out: | ||
486 | up_read(&uts_sem); | 488 | up_read(&uts_sem); |
487 | return err; | 489 | return err; |
488 | } | 490 | } |