From c0648e02db689b03564882044f32bc6c6e70c229 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 29 Sep 2009 00:19:20 +0100 Subject: MIPS: VPE: Fix build after the credential changes a while ago. Signed-off-by: Ralf Baechle --- arch/mips/kernel/kspd.c | 33 +++++++++++++++++++++++---------- 1 file changed, 23 insertions(+), 10 deletions(-) (limited to 'arch') diff --git a/arch/mips/kernel/kspd.c b/arch/mips/kernel/kspd.c index f2397f00db43..ad4e017ed2f3 100644 --- a/arch/mips/kernel/kspd.c +++ b/arch/mips/kernel/kspd.c @@ -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); -- cgit v1.2.2