From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20120527002524.631696340@linuxfoundation.org> Date: Sun, 27 May 2012 09:26:28 +0900 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Ming Lei , Venkatraman S , Chris Ball Subject: [ 82/91] mmc: omap_hsmmc: pass IRQF_ONESHOT to request_threaded_irq In-Reply-To: <20120527010903.GA18244@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ming Lei commit db35f83ef47b5f180f2670d11f5f93992314ea09 upstream. The flag of IRQF_ONESHOT should be passed to request_threaded_irq, otherwise the following failure message should be dumped because hardware handler is defined as NULL: [ 3.383483] genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq 368 [ 3.392730] omap_hsmmc: probe of omap_hsmmc.0 failed with error -22 The patch fixes one kernel hang bug which is caused by mmc card probe failure and root device can't be brought up. Signed-off-by: Ming Lei Acked-by: Venkatraman S Signed-off-by: Chris Ball Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/omap_hsmmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1969,7 +1969,7 @@ static int __devinit omap_hsmmc_probe(st ret = request_threaded_irq(mmc_slot(host).card_detect_irq, NULL, omap_hsmmc_detect, - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, mmc_hostname(mmc), host); if (ret) { dev_dbg(mmc_dev(host->mmc),