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mailbox: ti-msgmgr: Off by one in ti_msgmgr_of_xlate()

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[ Upstream commit 78f3ff524f ]

The > comparison should be >= or we access one element beyond the end
of the array.

(The inst->qinsts[] array is allocated in the ti_msgmgr_probe() function
and it has ->num_valid_queues elements.)

Fixes: a2b79838b8 ("mailbox: ti-msgmgr: Add support for Secure Proxy")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2018-12-03 17:50:11 +03:00 committed by Greg Kroah-Hartman
parent 20d1be36cd
commit bd8e3189b8
1 changed files with 1 additions and 1 deletions
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2
drivers/mailbox/ti-msgmgr.c
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@ -547,7 +547,7 @@ static struct mbox_chan *ti_msgmgr_of_xlate(struct mbox_controller *mbox,
}
if (d->is_sproxy) {
if (req_pid > d->num_valid_queues)
if (req_pid >= d->num_valid_queues)
goto err;
qinst = &inst->qinsts[req_pid];
return qinst->chan;