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authorThierry Reding <treding@nvidia.com>2014-08-01 16:15:10 +0400
committerBjorn Helgaas <bhelgaas@google.com>2014-09-05 00:41:43 +0400
commit8d38821cbcf51292cd5a23469d03bd38932a3ba9 (patch)
treea41f35c52ba3826dc4099a8bf24630a410633f62 /include/linux/ioport.h
parent52addcf9d6669fa439387610bc65c92fa0980cef (diff)
downloadlinux-8d38821cbcf51292cd5a23469d03bd38932a3ba9.tar.xz
resources: Add device-managed request/release_resource()
Provide device-managed implementations of the request_resource() and release_resource() functions. Upon failure to request a resource, the new devm_request_resource() function will output an error message for consistent error reporting. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/ioport.h')
-rw-r--r--include/linux/ioport.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 142ec544167c..2c5250222278 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -215,6 +215,11 @@ static inline int __deprecated check_region(resource_size_t s,
/* Wrappers for managed devices */
struct device;
+
+extern int devm_request_resource(struct device *dev, struct resource *root,
+ struct resource *new);
+extern void devm_release_resource(struct device *dev, struct resource *new);
+
#define devm_request_region(dev,start,n,name) \
__devm_request_region(dev, &ioport_resource, (start), (n), (name))
#define devm_request_mem_region(dev,start,n,name) \