diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/resource.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/kernel/resource.c b/kernel/resource.c index 19f2357dfda3..90552aab5f2d 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -1034,8 +1034,6 @@ resource_size_t resource_alignment(struct resource *res) * * request_region creates a new busy region. * - * check_region returns non-zero if the area is already busy. - * * release_region releases a matching busy region. */ @@ -1098,36 +1096,6 @@ struct resource * __request_region(struct resource *parent, EXPORT_SYMBOL(__request_region); /** - * __check_region - check if a resource region is busy or free - * @parent: parent resource descriptor - * @start: resource start address - * @n: resource region size - * - * Returns 0 if the region is free at the moment it is checked, - * returns %-EBUSY if the region is busy. - * - * NOTE: - * This function is deprecated because its use is racy. - * Even if it returns 0, a subsequent call to request_region() - * may fail because another driver etc. just allocated the region. - * Do NOT use it. It will be removed from the kernel. - */ -int __check_region(struct resource *parent, resource_size_t start, - resource_size_t n) -{ - struct resource * res; - - res = __request_region(parent, start, n, "check-region", 0); - if (!res) - return -EBUSY; - - release_resource(res); - free_resource(res); - return 0; -} -EXPORT_SYMBOL(__check_region); - -/** * __release_region - release a previously reserved resource region * @parent: parent resource descriptor * @start: resource start address |