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Diffstat (limited to 'arch/sparc64/kernel/sys_sparc.c')
-rw-r--r--arch/sparc64/kernel/sys_sparc.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c
index bf5f14ee73d..c608c947e6c 100644
--- a/arch/sparc64/kernel/sys_sparc.c
+++ b/arch/sparc64/kernel/sys_sparc.c
@@ -707,19 +707,21 @@ asmlinkage long sys_getdomainname(char __user *name, int len)
{
int nlen, err;
- if (len < 0 || len > __NEW_UTS_LEN)
+ if (len < 0)
return -EINVAL;
down_read(&uts_sem);
nlen = strlen(system_utsname.domainname) + 1;
- if (nlen < len)
- len = nlen;
+ err = -EINVAL;
+ if (nlen > len)
+ goto out;
err = -EFAULT;
- if (!copy_to_user(name, system_utsname.domainname, len))
+ if (!copy_to_user(name, system_utsname.domainname, nlen))
err = 0;
+out:
up_read(&uts_sem);
return err;
}