From: Suman Anna <s-anna@ti.com>
To: Greg Kroah-Hartman <greg@linuxfoundation.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>, Paul Walmsley <paul@pwsan.com>,
linux-omap@vger.kernel.org, Russell King <linux@arm.linux.org.uk>,
Benoit Cousson <b-cousson@ti.com>, Arnd Bergmann <arnd@arndb.de>,
Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>,
Tony Lindgren <tony@atomide.com>,
Linus Walleij <linus.walleij@linaro.org>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Suman Anna <s-anna@ti.com>,
linux-kernel@vger.kernel.org,
Felipe Contreras <felipe.contreras@nokia.com>,
Dom Cobley <popcornmix@gmail.com>,
Wim Van Sebroeck <wim@iguana.be>,
Fernando Guzman Lugo <lugo.fernando@gmail.com>,
Omar Ramirez Luna <omar.ramirez@copitl.com>,
Tejun Heo <tj@kernel.org>,
Omar Ramirez Luna <omar.luna@linaro.org>,
Loic Pallardy <loic.pallardy@st.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 11/13] mailbox/omap: check iomem resource before dereferencing it
Date: Mon, 11 Feb 2013 22:57:10 -0600 [thread overview]
Message-ID: <1360645032-9668-12-git-send-email-s-anna@ti.com> (raw)
In-Reply-To: <1360645032-9668-1-git-send-email-s-anna@ti.com>
Add a NULL check for iomem resource in mailbox probe functions.
Signed-off-by: Fernando Guzman Lugo <lugo.fernando@gmail.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
---
drivers/mailbox/mailbox-omap1.c | 3 +++
drivers/mailbox/mailbox-omap2.c | 5 +++++
2 files changed, 8 insertions(+)
diff --git a/drivers/mailbox/mailbox-omap1.c b/drivers/mailbox/mailbox-omap1.c
index 295c32a..5b0f2c1 100644
--- a/drivers/mailbox/mailbox-omap1.c
+++ b/drivers/mailbox/mailbox-omap1.c
@@ -179,6 +179,9 @@ static int omap1_mbox_probe(struct platform_device *pdev)
list[0]->irq = platform_get_irq_byname(pdev, "dsp");
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem)
+ return -ENOMEM;
+
mbox_base = ioremap(mem->start, resource_size(mem));
if (!mbox_base)
return -ENOMEM;
diff --git a/drivers/mailbox/mailbox-omap2.c b/drivers/mailbox/mailbox-omap2.c
index d3a3d84..9fbd491 100644
--- a/drivers/mailbox/mailbox-omap2.c
+++ b/drivers/mailbox/mailbox-omap2.c
@@ -293,6 +293,11 @@ static int omap2_mbox_probe(struct platform_device *pdev)
}
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
mbox_base = ioremap(mem->start, resource_size(mem));
if (!mbox_base) {
ret = -ENOMEM;
--
1.8.1.2
next prev parent reply other threads:[~2013-02-12 4:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-12 4:56 [PATCH v2 00/13] drivers: mailbox: framework creation Suman Anna
2013-02-12 4:57 ` [PATCH v2 01/13] ARM: OMAP2+: mbox: remove dependencies with soc.h Suman Anna
2013-02-12 4:57 ` [PATCH v2 02/13] mailbox: OMAP: introduce mailbox framework Suman Anna
2013-02-12 4:57 ` [PATCH v2 03/13] mailbox: split internal header from API header Suman Anna
2013-02-12 4:57 ` [PATCH v2 04/13] mailbox: rename omap_mbox in mailbox Suman Anna
2013-02-12 4:57 ` [PATCH v2 05/13] mailbox: create opened message type Suman Anna
2013-02-12 4:57 ` [PATCH v2 06/13] mailbox: change protection mechanisms Suman Anna
2013-02-12 4:57 ` [PATCH v2 07/13] mailbox: add shared memory mailbox type Suman Anna
2013-02-12 4:57 ` [PATCH v2 08/13] mailbox: add IRQF_NO_SUSPEND flag Suman Anna
2013-02-12 4:57 ` [PATCH v2 09/13] mailbox: add no_irq send message Suman Anna
2013-02-12 4:57 ` [PATCH v2 10/13] mailbox: create dbx500 mailbox driver Suman Anna
2013-02-12 10:39 ` Mark Rutland
2013-02-12 20:01 ` Loic PALLARDY
2013-02-13 9:08 ` Mark Rutland
2013-02-12 4:57 ` Suman Anna [this message]
2013-02-12 4:57 ` [PATCH v2 12/13] mailbox: check for NULL nb in mailbox_put Suman Anna
2013-02-12 4:57 ` [PATCH v2 13/13] mailbox: call request_irq after mbox queues are allocated Suman Anna
2013-02-13 13:36 ` [PATCH v2 00/13] drivers: mailbox: framework creation Linus Walleij
2013-02-13 13:42 ` Russell King - ARM Linux
2013-02-13 16:41 ` Anna, Suman
2013-02-13 20:36 ` Loic PALLARDY
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