From: Grant Likely <grant.likely@secretlab.ca>
To: linux-kernel@vger.kernel.org
Cc: Milton Miller <miltonm@bga.com>,
Grant Likely <grant.likely@secretlab.ca>,
Paul Mundt <lethal@linux-sh.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Thomas Gleixner <tglx@linutronix.de>,
Rob Herring <rob.herring@calxeda.com>
Subject: [PATCH 05/12] irqdomain: Fix irq_create_direct_mapping() to test irq_domain type.
Date: Fri, 15 Jun 2012 23:01:30 -0600 [thread overview]
Message-ID: <1339822897-15840-6-git-send-email-grant.likely@secretlab.ca> (raw)
In-Reply-To: <1339822897-15840-1-git-send-email-grant.likely@secretlab.ca>
irq_create_direct_mapping can only be used with the NOMAP type. Make
the function test to ensure it is passed the correct type of
irq_domain.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
---
kernel/irq/irqdomain.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 79a7711..0483e27 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -447,8 +447,8 @@ unsigned int irq_create_direct_mapping(struct irq_domain *domain)
if (domain == NULL)
domain = irq_default_domain;
- BUG_ON(domain == NULL);
- WARN_ON(domain->revmap_type != IRQ_DOMAIN_MAP_NOMAP);
+ if (WARN_ON(!domain || domain->revmap_type != IRQ_DOMAIN_MAP_NOMAP))
+ return 0;
virq = irq_alloc_desc_from(1, of_node_to_nid(domain->of_node));
if (!virq) {
--
1.7.9.5
next prev parent reply other threads:[~2012-06-16 5:02 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-16 5:01 [PATCH 00/12] irqdomain cleanup and refactoring Grant Likely
2012-06-16 5:01 ` [PATCH 01/12] irqdomain: Split disassociating code into separate function Grant Likely
2012-06-16 5:57 ` Benjamin Herrenschmidt
2012-06-16 5:01 ` [PATCH 02/12] irqdomain: Always update revmap when setting up a virq Grant Likely
2012-06-16 5:57 ` Benjamin Herrenschmidt
2012-06-16 5:01 ` [PATCH 03/12] irqdomain: Support for static IRQ mapping and association Grant Likely
2012-06-16 5:58 ` Benjamin Herrenschmidt
2012-06-17 22:16 ` Grant Likely
2012-06-16 5:01 ` [PATCH 04/12] irqdomain: Eliminate dedicated radix lookup functions Grant Likely
2012-06-16 5:56 ` Benjamin Herrenschmidt
2012-06-16 6:12 ` Grant Likely
2012-06-17 21:58 ` Grant Likely
2012-06-16 5:01 ` Grant Likely [this message]
2012-06-16 5:01 ` [PATCH 06/12] irqdomain: eliminate slow-path revmap lookups Grant Likely
2012-06-16 5:01 ` [PATCH 07/12] irqdomain: Make ops->map hook optional Grant Likely
2012-06-16 5:59 ` Benjamin Herrenschmidt
2012-06-16 5:01 ` [PATCH 08/12] irqdomain: Replace LEGACY mapping with LINEAR Grant Likely
2012-06-16 6:01 ` Benjamin Herrenschmidt
2012-06-16 6:16 ` Grant Likely
2012-06-18 12:23 ` Mark Brown
2012-06-16 5:01 ` [PATCH 09/12] irqdomain: Reserve IRQs for legacy domain Grant Likely
2012-06-16 5:01 ` [PATCH 10/12] irqdomain: Add debugging message Grant Likely
2012-06-16 6:02 ` Benjamin Herrenschmidt
2012-06-16 5:01 ` [PATCH 11/12] irqdomain: reorganize revmap data Grant Likely
2012-06-16 6:06 ` Benjamin Herrenschmidt
2012-06-16 6:19 ` Grant Likely
2012-06-16 6:20 ` Grant Likely
2012-06-16 5:01 ` [PATCH 12/12] irqdomain: merge linear and tree reverse mappings Grant Likely
2012-06-18 12:28 ` [PATCH 00/12] irqdomain cleanup and refactoring Mark Brown
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1339822897-15840-6-git-send-email-grant.likely@secretlab.ca \
--to=grant.likely@secretlab.ca \
--cc=benh@kernel.crashing.org \
--cc=lethal@linux-sh.org \
--cc=linux-kernel@vger.kernel.org \
--cc=miltonm@bga.com \
--cc=rob.herring@calxeda.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®