brcm80211: fix missing allocation failure check

Check for oobirq_entry allocation failure to avoid
NULL pointer dereferencing.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 49765d34b4e0b43ac947aa360fb58d1fff88aa90..7c4ee72f9d56006cb7e069a9472a0524bbebb9c9 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -638,6 +638,8 @@ static int brcmf_sdio_pd_probe(struct platform_device *pdev)
 
                oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
                                       GFP_KERNEL);
+               if (!oobirq_entry)
+                       return -ENOMEM;
                oobirq_entry->irq = res->start;
                oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
                list_add_tail(&oobirq_entry->list, &oobirq_lh);