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Commit c6cc47b1 authored by Sujith Manoharan's avatar Sujith Manoharan Committed by John W. Linville
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ath9k: Handle FATAL interrupts correctly 



When a FATAL interrupt is received, a full chip reset is
required, which is done in the main tasklet. But since
the reset routine is scheduled as a work item, make sure
that interrupts are not enabled in the tasklet before the
reset is done.

Signed-off-by: default avatarSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 8a5b7ab3

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

+8 −2
Original line number Diff line number Diff line
@@ -362,6 +362,13 @@ void ath9k_tasklet(unsigned long data) 
			type = RESET_TYPE_BB_WATCHDOG;



		ath9k_queue_reset(sc, type);



		/*

		 * Increment the ref. counter here so that

		 * interrupts are enabled in the reset routine.

		 */

		atomic_inc(&ah->intr_ref_cnt);

		ath_dbg(common, ANY, "FATAL: Skipping interrupts\n");

		goto out;

	}
@@ -400,10 +407,9 @@ void ath9k_tasklet(unsigned long data) 


	ath9k_btcoex_handle_interrupt(sc, status);



out:

	/* re-enable hardware interrupt */

	ath9k_hw_enable_interrupts(ah);



out:

	spin_unlock(&sc->sc_pcu_lock);

	ath9k_ps_restore(sc);

}