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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>
This commit is contained in:
Heinrich Schuchardt 2016-05-18 01:16:01 +02:00 committed by Kalle Valo
parent 6b3c33e985
commit 141bcf0990
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/marvell/mwifiex/pcie.c
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@ -2901,10 +2901,11 @@ static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
{ {
struct pcie_service_card *card = adapter->card; struct pcie_service_card *card = adapter->card;
const struct mwifiex_pcie_card_reg *reg; const struct mwifiex_pcie_card_reg *reg;
struct pci_dev *pdev = card->dev; struct pci_dev *pdev;
int i; int i;
if (card) { if (card) {
pdev = card->dev;
if (card->msix_enable) { if (card->msix_enable) {
for (i = 0; i < MWIFIEX_NUM_MSIX_VECTORS; i++) for (i = 0; i < MWIFIEX_NUM_MSIX_VECTORS; i++)
synchronize_irq(card->msix_entries[i].vector); synchronize_irq(card->msix_entries[i].vector);