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s390/compat,uid16: use current_cred() 

86a264ab "CRED: Wrap current->cred and a few other accessors" converted
all uses of current->cred into current_cred() but left s390 alone.

So let's convert s390 finally as well, only five years later.

This way we also get rid of a sparse warning which complains about a
possible invalid rcu dereference which however is a false positive.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens 2013-09-07 10:19:55 +02:00
parent 7d6c3b492f
commit 2ec7f4aec4
1 changed files with 5 additions and 4 deletions
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9
arch/s390/kernel/compat_linux.c
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@ -221,25 +221,26 @@ static int groups16_from_user(struct group_info *group_info, u16 __user *groupli
asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
{
const struct cred *cred = current_cred();
int i;
if (gidsetsize < 0)
return -EINVAL;
get_group_info(current->cred->group_info);
i = current->cred->group_info->ngroups;
get_group_info(cred->group_info);
i = cred->group_info->ngroups;
if (gidsetsize) {
if (i > gidsetsize) {
i = -EINVAL;
goto out;
}
if (groups16_to_user(grouplist, current->cred->group_info)) {
if (groups16_to_user(grouplist, cred->group_info)) {
i = -EFAULT;
goto out;
}
}
out:
put_group_info(current->cred->group_info);
put_group_info(cred->group_info);
return i;
}