Commit-ID: ddac9c5bfa75029ed4b58e81d8d3c49694598ff6
Gitweb: http://git.kernel.org/tip/ddac9c5bfa75029ed4b58e81d8d3c49694598ff6
Author: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
AuthorDate: Tue, 18 Jul 2017 08:39:21 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Tue, 18 Jul 2017 09:45:28 +0200
irqchip/mips-gic: Remove population of irq domain names
Since commit d59f6617eef0f ("genirq: Allow fwnode to carry name
information only") the irqdomain core sets the names of irq domains.
When the name is allocated the new IRQ_DOMAIN_NAME_ALLOCATED flag is
set. Replacing the allocated name with a constant one is not a good
idea, since calling the new irq_domain_update_bus_token() API, added to
the MIPS GIC driver by commit 96f0d93a487e1 ("irqchip/MSI: Use
irq_domain_update_bus_token instead of an open coded access") will
attempt to kfree the pointer, and result in a kernel OOPS.
Fix this by removing the names, now that they are set by the irqdomain
core. This effectively reverts commit 21c57fd13589 ("irqchip/mips-gic:
Populate irq_domain names").
Fixes: d59f6617eef0f ("genirq: Allow fwnode to carry name information only")
Signed-off-by: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1500363561-32213-1-git-send-email-matt.redfearn@xxxxxxxxxx
---
drivers/irqchip/irq-mips-gic.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 832ebf40..6ab1d3a 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -950,7 +950,6 @@ static void __init __gic_init(unsigned long gic_base_addr,
&gic_irq_domain_ops, NULL);
if (!gic_irq_domain)
panic("Failed to add GIC IRQ domain");
- gic_irq_domain->name = "mips-gic-irq";
gic_ipi_domain = irq_domain_add_hierarchy(gic_irq_domain,
IRQ_DOMAIN_FLAG_IPI_PER_CPU,
@@ -959,7 +958,6 @@ static void __init __gic_init(unsigned long gic_base_addr,
if (!gic_ipi_domain)
panic("Failed to add GIC IPI domain");
- gic_ipi_domain->name = "mips-gic-ipi";
irq_domain_update_bus_token(gic_ipi_domain, DOMAIN_BUS_IPI);
if (node &&
--
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