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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-06 22:07:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-06 22:07:44 -0700
commitdc502142b65b9e31eb90ab4344b3acadb2698317 (patch)
tree59be531fcce876dbe0bbc1ddf5a84fc9b3ee8a27 /drivers/s390
parent90880b532a7ebd13a052d6c410807b33809a3efb (diff)
parentb7310105ab2cd9168fe50564d8b9d248325a326e (diff)
Merge branch 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull user access str* updates from Al Viro: "uaccess str...() dead code removal" * 'uaccess.strlen' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: s390 keyboard.c: don't open-code strndup_user() mips: get rid of unused __strnlen_user() get rid of unused __strncpy_from_user() instances kill strlen_user()
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/keyboard.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index ba0e4f93503d..186d05e4c767 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -433,12 +433,7 @@ do_kdgkb_ioctl(struct kbd_data *kbd, struct kbsentry __user *u_kbs,
case KDSKBSENT:
if (!perm)
return -EPERM;
- len = strnlen_user(u_kbs->kb_string, sizeof(u_kbs->kb_string));
- if (!len)
- return -EFAULT;
- if (len > sizeof(u_kbs->kb_string))
- return -EINVAL;
- p = memdup_user_nul(u_kbs->kb_string, len);
+ p = strndup_user(u_kbs->kb_string, sizeof(u_kbs->kb_string));
if (IS_ERR(p))
return PTR_ERR(p);
kfree(kbd->func_table[kb_func]);