This is a note to let you know that I've just added the patch titled bus: omap_l3_noc: Correct returning IRQ_HANDLED to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bus-omap_l3_noc-correct-returning-irq_handled.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From c4cf0935a2d8fe6d186bf4253ea3c4b4a8a8a710 Mon Sep 17 00:00:00 2001 From: Keerthy <j-keerthy@xxxxxx> Date: Mon, 10 Nov 2014 23:49:48 +0530 Subject: bus: omap_l3_noc: Correct returning IRQ_HANDLED unconditionally in the irq handler From: Keerthy <j-keerthy@xxxxxx> commit c4cf0935a2d8fe6d186bf4253ea3c4b4a8a8a710 upstream. Correct returning IRQ_HANDLED unconditionally in the irq handler. Return IRQ_NONE for some interrupt which we do not expect to be handled in this handler. This prevents kernel stalling with back to back spurious interrupts. Fixes: 2722e56de6 ("OMAP4: l3: Introduce l3-interconnect error handling driver") Acked-by: Nishanth Menon <nm@xxxxxx> Signed-off-by: Keerthy <j-keerthy@xxxxxx> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/bus/omap_l3_noc.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/drivers/bus/omap_l3_noc.c +++ b/drivers/bus/omap_l3_noc.c @@ -222,10 +222,14 @@ static irqreturn_t l3_interrupt_handler( } /* Error found so break the for loop */ - break; + return IRQ_HANDLED; } } - return IRQ_HANDLED; + + dev_err(l3->dev, "L3 %s IRQ not handled!!\n", + inttype ? "debug" : "application"); + + return IRQ_NONE; } static const struct of_device_id l3_noc_match[] = { Patches currently in stable-queue which might be from j-keerthy@xxxxxx are queue-3.18/bus-omap_l3_noc-correct-returning-irq_handled.patch queue-3.18/bus-omap_l3_noc-add-resume-hook-to-restore-context.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html