drivers/staging/media/atomisp/pci/sh_css_host_data.c

Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/sh_css_host_data.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/media/atomisp/pci/sh_css_host_data.c
Extension
.c
Size
658 bytes
Lines
35
Domain
Driver Families
Bucket
drivers/staging
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2015, Intel Corporation.
 */

#include <linux/slab.h>
#include <ia_css_host_data.h>
#include <sh_css_internal.h>

struct ia_css_host_data *ia_css_host_data_allocate(size_t size)
{
	struct ia_css_host_data *me;

	me =  kmalloc_obj(struct ia_css_host_data);
	if (!me)
		return NULL;
	me->size = (uint32_t)size;
	me->address = kvmalloc(size, GFP_KERNEL);
	if (!me->address) {
		kfree(me);
		return NULL;
	}
	return me;
}

void ia_css_host_data_free(struct ia_css_host_data *me)
{
	if (me) {
		kvfree(me->address);
		me->address = NULL;
		kfree(me);
	}
}

Annotation

Implementation Notes