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[patch 3/4] mwifiex: prevent corruption instead of just warning

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We may as well put a return here instead of just printing a warning
message and then corrupting memory.  The caller doesn't check the
return code.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index d12d440..40b154d 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -1228,9 +1228,11 @@ static int mwifiex_pcie_event_complete(struct mwifiex_adapter *adapter,
 	if (!skb)
 		return 0;
 
-	if (rdptr >= MWIFIEX_MAX_EVT_BD)
+	if (rdptr >= MWIFIEX_MAX_EVT_BD) {
 		dev_err(adapter->dev, "event_complete: Invalid rdptr 0x%x\n",
 					rdptr);
+		return -EINVAL;
+	}
 
 	/* Read the event ring write pointer set by firmware */
 	if (mwifiex_read_reg(adapter, REG_EVTBD_WRPTR, &wrptr)) {
--
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