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SUNRPC: Fix a bug in gss_create_upcall

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If wait_event_interruptible_timeout() is successful, it returns
the number of seconds remaining until the timeout. In that
case, we should be retrying the upcall.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2013-05-15 10:46:33 -07:00
parent f722406faa
commit d36ccb9cec
1 changed files with 3 additions and 2 deletions
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5
net/sunrpc/auth_gss/auth_gss.c
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@ -563,11 +563,12 @@ gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred)
struct rpc_cred *cred = &gss_cred->gc_base;
struct gss_upcall_msg *gss_msg;
DEFINE_WAIT(wait);
int err = 0;
int err;
dprintk("RPC: %s for uid %u\n",
__func__, from_kuid(&init_user_ns, cred->cr_uid));
retry:
err = 0;
gss_msg = gss_setup_upcall(gss_auth->client, gss_auth, cred);
if (PTR_ERR(gss_msg) == -EAGAIN) {
err = wait_event_interruptible_timeout(pipe_version_waitqueue,
@ -576,7 +577,7 @@ retry:
warn_gssd();
err = -EACCES;
}
if (err)
if (err < 0)
goto out;
goto retry;
}