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Commit 2ba7d144 authored by Wojciech Dubowik's avatar Wojciech Dubowik Committed by John W. Linville
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ath9k: Fix NULL pointer dereference on early irq 



The ah struct might not have been initialized when
interrupt comes so check for it.

Signed-off-by: default avatarWojciech Dubowik <Wojciech.Dubowik@neratec.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent fa5c107c

drivers/net/wireless/ath/ath9k/main.c

+1 −1
Original line number Diff line number Diff line
@@ -513,7 +513,7 @@ irqreturn_t ath_isr(int irq, void *dev) 
	 * touch anything. Note this can happen early

	 * on if the IRQ is shared.

	 */

	if (test_bit(ATH_OP_INVALID, &common->op_flags))

	if (!ah || test_bit(ATH_OP_INVALID, &common->op_flags))

		return IRQ_NONE;



	/* shared irq, not for us */