From: Felipe Pena Date: Thu, 17 Oct 2013 00:40:24 +0000 (-0300) Subject: drivers: net: wireless: b43: Fix possible NULL ptr dereference X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8ce9beac4661f576ea0d518b9f086bb52a171a37;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drivers: net: wireless: b43: Fix possible NULL ptr dereference On the ternary expression the 'e' variable could be NULL dereferenced, when b43_nphy_get_rf_ctl_over_rev7 function returns NULL. Signed-off-by: Felipe Pena Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 7c970d3ae358..05ee7f10cc8f 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -164,7 +164,8 @@ static void b43_nphy_rf_ctl_override_rev7(struct b43_wldev *dev, u16 field, } en_addr = en_addrs[override][i]; - val_addr = (i == 0) ? e->val_addr_core0 : e->val_addr_core1; + if (e) + val_addr = (i == 0) ? e->val_addr_core0 : e->val_addr_core1; if (off) { b43_phy_mask(dev, en_addr, ~en_mask);