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drivers: net: wireless: b43: Fix possible NULL ptr dereference

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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 <felipensp@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felipe Pena 2013-10-16 21:40:24 -03:00 committed by John W. Linville
parent 36165fd5b0
commit 8ce9beac46
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/b43/phy_n.c
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@ -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);