From: Brandon Philips <bphilips@suse•de>
To: netdev@vger•kernel.org, e1000-devel@lists•sourceforge.net
Cc: teheo@suse•de, Brandon Philips <bphilips@suse•de>
Subject: [patch 3/4] Implement devm_kcalloc
Date: Wed, 15 Aug 2007 12:00:00 -0700 [thread overview]
Message-ID: <20070815190000.GD7294@ifup.org> (raw)
[-- Attachment #1: kcalloc-devres.patch --]
[-- Type: text/plain, Size: 1998 bytes --]
devm_kcalloc is a simple wrapper around devm_kzalloc for arrays. This is
needed because kcalloc is often used in network devices.
Signed-off-by: Brandon Philips <bphilips@suse•de>
---
drivers/base/devres.c | 16 ++++++++++++++++
include/linux/device.h | 2 ++
2 files changed, 18 insertions(+)
Index: linux-2.6/drivers/base/devres.c
===================================================================
--- linux-2.6.orig/drivers/base/devres.c
+++ linux-2.6/drivers/base/devres.c
@@ -630,6 +630,22 @@ void * devm_kzalloc(struct device *dev,
EXPORT_SYMBOL_GPL(devm_kzalloc);
/**
+ * devm_kcalloc - resource-managed kcalloc
+ * @dev: Device to allocate memory for
+ * @n: number of elements.
+ * @size: element size.
+ * @flags: the type of memory to allocate.
+ */
+void *devm_kcalloc(struct device *dev, size_t n, size_t size,
+ gfp_t flags)
+{
+ if (n != 0 && size > ULONG_MAX / n)
+ return NULL;
+ return devm_kzalloc(dev, n * size, flags);
+}
+EXPORT_SYMBOL_GPL(devm_kcalloc);
+
+/**
* devm_kfree - Resource-managed kfree
* @dev: Device this memory belongs to
* @p: Memory to free
Index: linux-2.6/include/linux/device.h
===================================================================
--- linux-2.6.orig/include/linux/device.h
+++ linux-2.6/include/linux/device.h
@@ -402,6 +402,8 @@ extern int devres_release_group(struct d
/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+extern void *devm_kcalloc(struct device *dev, size_t n, size_t size,
+ gfp_t flags);
extern void devm_kfree(struct device *dev, void *p);
struct device {
--
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reply other threads:[~2007-08-15 19:00 UTC|newest]
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