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| author | Keerthy <j-keerthy@ti.com> | 2014-11-10 23:49:48 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-27 08:29:44 -0800 |
| commit | 4cb194fd5aa555e65e4af4ddc77315ac59f1520a (patch) | |
| tree | 5ebe7291518b64016ab7b2bbcdb22dab1ae166ea /drivers/bus | |
| parent | 397ee6685dbe3d1dd7b002bcf6231d969080ab0c (diff) | |
| download | linux-stable-4cb194fd5aa555e65e4af4ddc77315ac59f1520a.tar.gz linux-stable-4cb194fd5aa555e65e4af4ddc77315ac59f1520a.tar.bz2 linux-stable-4cb194fd5aa555e65e4af4ddc77315ac59f1520a.zip | |
bus: omap_l3_noc: Correct returning IRQ_HANDLED unconditionally in the irq handler
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@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/omap_l3_noc.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c index b5eac29d8f6e..17d86595951c 100644 --- a/drivers/bus/omap_l3_noc.c +++ b/drivers/bus/omap_l3_noc.c @@ -222,10 +222,14 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3) } /* 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[] = { |