staging: vchiq_core: Bail out in case of invalid tx_pos
Properly handle the error case in case of an invalid tx_pos. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -600,8 +600,10 @@ reserve_space(VCHIQ_STATE_T *state, size_t space, int is_blocking)
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return NULL; /* No space available */
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return NULL; /* No space available */
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}
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}
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BUG_ON(tx_pos ==
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if (tx_pos == (state->slot_queue_available * VCHIQ_SLOT_SIZE)) {
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(state->slot_queue_available * VCHIQ_SLOT_SIZE));
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pr_warn("%s: invalid tx_pos: %d\n", __func__, tx_pos);
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return NULL;
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}
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slot_index = local->slot_queue[
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slot_index = local->slot_queue[
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SLOT_QUEUE_INDEX_FROM_POS(tx_pos) &
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SLOT_QUEUE_INDEX_FROM_POS(tx_pos) &
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