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authorMauro Carvalho Chehab <mchehab@redhat.com>2011-10-31 09:09:32 -0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-10-31 09:09:32 -0200
commit2c699499df3f57e62725fcd56842090fb5e82600 (patch)
tree5a9d5b3b5df3d98de92f605b7dee0815d03b5fc8 /kernel/irq/irqdomain.c
parentddbb67caef2ecd0070c6ebed4d932c51ace1619f (diff)
parentc3b92c8787367a8bb53d57d9789b558f1295cc96 (diff)
Merge tag 'v3.1'old/cs_2c699499df3f
* tag 'v3.1': (537 commits) Linux 3.1 x86: Fix S4 regression dm kcopyd: fix job_pool leak ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM crypto: ghash - Avoid null pointer dereference if no key is set ARM: S5P: fix offset calculation on gpio-interrupt hwmon: (w83627ehf) Fix negative 8-bit temperature values mm: fix race between mremap and removing migration entry sparc: Add alignment flag to PCI expansion resources fib_rules: fix unresolved_rules counting r8169: fix wrong eee setting for rlt8111evl r8169: fix driver shutdown WoL regression. ehea: Change maintainer to me [media] videodev: fix a NULL pointer dereference in v4l2_device_release() intel-iommu: fix superpage support in pfn_to_dma_pte() intel-iommu: set iommu_superpage on VM domains to lowest common denominator intel-iommu: fix return value of iommu_unmap() API MAINTAINERS: Update VT-d entry for drivers/pci -> drivers/iommu move drm/radeon/kms/atom: fix handling of FB scratch indices pptp: pptp_rcv_core() misses pskb_may_pull() call ...
Diffstat (limited to 'kernel/irq/irqdomain.c')
-rw-r--r--kernel/irq/irqdomain.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index d5828da3fd38..b57a3776de44 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -29,7 +29,11 @@ void irq_domain_add(struct irq_domain *domain)
*/
for (hwirq = 0; hwirq < domain->nr_irq; hwirq++) {
d = irq_get_irq_data(irq_domain_to_irq(domain, hwirq));
- if (d || d->domain) {
+ if (!d) {
+ WARN(1, "error: assigning domain to non existant irq_desc");
+ return;
+ }
+ if (d->domain) {
/* things are broken; just report, don't clean up */
WARN(1, "error: irq_desc already assigned to a domain");
return;

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