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MIPS: VPE: Fix build after the credential changes a while ago. 

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2009-09-29 00:19:20 +01:00
parent b7a05871aa
commit c0648e02db
1 changed files with 23 additions and 10 deletions
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33
arch/mips/kernel/kspd.c
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@ -172,13 +172,20 @@ static unsigned int translate_open_flags(int flags)
}
static void sp_setfsuidgid( uid_t uid, gid_t gid)
static int sp_setfsuidgid(uid_t uid, gid_t gid)
{
current->cred->fsuid = uid;
current->cred->fsgid = gid;
struct cred *new;
key_fsuid_changed(current);
key_fsgid_changed(current);
new = prepare_creds();
if (!new)
return -ENOMEM;
new->fsuid = uid;
new->fsgid = gid;
commit_creds(new);
return 0;
}
/*
@ -196,7 +203,7 @@ void sp_work_handle_request(void)
mm_segment_t old_fs;
struct timeval tv;
struct timezone tz;
int cmd;
int err, cmd;
char *vcwd;
int size;
@ -225,8 +232,11 @@ void sp_work_handle_request(void)
/* Run the syscall at the privilege of the user who loaded the
SP program */
if (vpe_getuid(tclimit))
sp_setfsuidgid(vpe_getuid(tclimit), vpe_getgid(tclimit));
if (vpe_getuid(tclimit)) {
err = sp_setfsuidgid(vpe_getuid(tclimit), vpe_getgid(tclimit));
if (!err)
pr_err("Change of creds failed\n");
}
switch (sc.cmd) {
/* needs the flags argument translating from SDE kit to
@ -283,8 +293,11 @@ void sp_work_handle_request(void)
break;
} /* switch */
if (vpe_getuid(tclimit))
sp_setfsuidgid( 0, 0);
if (vpe_getuid(tclimit)) {
err = sp_setfsuidgid(0, 0);
if (!err)
pr_err("restoring old creds failed\n");
}
old_fs = get_fs();
set_fs(KERNEL_DS);