This is a note to let you know that I've just added the patch titled
iommu/arm-smmu: fix a signedness bug
to the 3.11-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:
iommu-arm-smmu-fix-a-signedness-bug.patch
and it can be found in the queue-3.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From faea13b72dbdb77e4d6ad83344596486611708b0 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Wed, 21 Aug 2013 09:33:30 +0100
Subject: iommu/arm-smmu: fix a signedness bug
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit faea13b72dbdb77e4d6ad83344596486611708b0 upstream.
Unsigned char is never equal to -1.
Tested-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iommu/arm-smmu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -379,6 +379,7 @@ struct arm_smmu_cfg {
u32 cbar;
pgd_t *pgd;
};
+#define INVALID_IRPTNDX 0xff
struct arm_smmu_domain {
/*
@@ -830,7 +831,7 @@ static int arm_smmu_init_domain_context(
if (IS_ERR_VALUE(ret)) {
dev_err(smmu->dev, "failed to request context IRQ %d (%u)\n",
root_cfg->irptndx, irq);
- root_cfg->irptndx = -1;
+ root_cfg->irptndx = INVALID_IRPTNDX;
goto out_free_context;
}
@@ -855,7 +856,7 @@ static void arm_smmu_destroy_domain_cont
if (!smmu)
return;
- if (root_cfg->irptndx != -1) {
+ if (root_cfg->irptndx != INVALID_IRPTNDX) {
irq = smmu->irqs[smmu->num_global_irqs + root_cfg->irptndx];
free_irq(irq, domain);
}
Patches currently in stable-queue which might be from dan.carpenter@xxxxxxxxxx are
queue-3.11/cciss-fix-info-leak-in-cciss_ioctl32_passthru.patch
queue-3.11/iommu-arm-smmu-fix-a-signedness-bug.patch
queue-3.11/cpqarray-fix-info-leak-in-ida_locked_ioctl.patch
queue-3.11/asoc-max98095-a-couple-array-underflows.patch
queue-3.11/iommu-arm-smmu-fix-iommu_present-test-in-init.patch
queue-3.11/asoc-ab8500-codec-info-leak-in-anc_status_control_put.patch
queue-3.11/net-sctp-fix-smatch-warning-in-sctp_send_asconf_del_ip.patch
queue-3.11/asoc-88pm860x-array-overflow-in-snd_soc_put_volsw_2r_st.patch
--
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