mwiflex: avoid possible null pointer dereference

Do not dereference card before checking against NULL value.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 9246ce8..a35db02 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -2901,10 +2901,11 @@ static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
 {
        struct pcie_service_card *card = adapter->card;
        const struct mwifiex_pcie_card_reg *reg;
-       struct pci_dev *pdev = card->dev;
+       struct pci_dev *pdev;
        int i;
 
        if (card) {
+               pdev = card->dev;
                if (card->msix_enable) {
                        for (i = 0; i < MWIFIEX_NUM_MSIX_VECTORS; i++)
                                synchronize_irq(card->msix_entries[i].vector);