This is a note to let you know that I've just added the patch titled
irqchip: armada-370-xp: fix invalid cast of signed value into unsigned variable
to the 3.14-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:
irqchip-armada-370-xp-fix-invalid-cast-of-signed-value-into-unsigned-variable.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From da343fc776e0bcb238b65d9d24610819b95d0ef4 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Date: Fri, 18 Apr 2014 14:19:47 +0200
Subject: irqchip: armada-370-xp: fix invalid cast of signed value into unsigned variable
From: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
commit da343fc776e0bcb238b65d9d24610819b95d0ef4 upstream.
The armada_370_xp_alloc_msi() function returns a signed int, which is
negative on error. However, we store the return value into an
irq_hw_number_t, which is unsigned. Therefore, we actually never test
if armada_370_xp_alloc_msi() returns an error or not, which may lead
us to use hwirq numbers of as 0xffffffe4 (when
armada_370_xp_alloc_msi() returns -ENOSPC).
This commit fixes that by storing the return value of
armada_370_xp_alloc_msi() in a signed variable.
Fixes: 31f614edb726fcc4d5aa0f2895fbdec9b04a3ca4 ('irqchip: armada-370-xp: implement MSI support')
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/1397823593-1932-2-git-send-email-thomas.petazzoni@xxxxxxxxxxxxxxxxxx
Tested-by: Neil Greatorex <neil@xxxxxxxxxxxxxxx>
Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/irqchip/irq-armada-370-xp.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -130,8 +130,7 @@ static int armada_370_xp_setup_msi_irq(s
struct msi_desc *desc)
{
struct msi_msg msg;
- irq_hw_number_t hwirq;
- int virq;
+ int virq, hwirq;
hwirq = armada_370_xp_alloc_msi();
if (hwirq < 0)
Patches currently in stable-queue which might be from thomas.petazzoni@xxxxxxxxxxxxxxxxxx are
queue-3.14/irqchip-armada-370-xp-fix-releasing-of-msis.patch
queue-3.14/irqchip-armada-370-xp-implement-the-check_device-msi_chip-operation.patch
queue-3.14/irqchip-armada-370-xp-fix-invalid-cast-of-signed-value-into-unsigned-variable.patch
--
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