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drivers: Initialize resource entry to zero

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I/O resource descriptor, 'desc' in struct resource, needs to be
initialized to zero by default.  Some drivers call kmalloc() to
allocate a resource entry, but do not initialize it to zero by
memset().  Change these drivers to call kzalloc(), instead.

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Acked-by: Helge Deller <deller@gmx.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: linux-acpi@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm <linux-mm@kvack.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Link: http://lkml.kernel.org/r/1453841853-11383-10-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Toshi Kani 2016-01-26 21:57:25 +01:00 committed by Ingo Molnar
parent 782b86641e
commit 9a975bee4b
4 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/acpi_platform.c
View File

@ -62,7 +62,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
if (count < 0) {
return NULL;
} else if (count > 0) {
resources = kmalloc(count * sizeof(struct resource),
resources = kzalloc(count * sizeof(struct resource),
GFP_KERNEL);
if (!resources) {
dev_err(&adev->dev, "No memory for resources\n");

4
drivers/parisc/eisa_enumerator.c
View File

@ -91,7 +91,7 @@ static int configure_memory(const unsigned char *buf,
for (i=0;i<HPEE_MEMORY_MAX_ENT;i++) {
c = get_8(buf+len);
if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
int result;
res->name = name;
@ -183,7 +183,7 @@ static int configure_port(const unsigned char *buf, struct resource *io_parent,
for (i=0;i<HPEE_PORT_MAX_ENT;i++) {
c = get_8(buf+len);
if (NULL != (res = kmalloc(sizeof(struct resource), GFP_KERNEL))) {
if (NULL != (res = kzalloc(sizeof(struct resource), GFP_KERNEL))) {
res->name = board;
res->start = get_16(buf+len+1);
res->end = get_16(buf+len+1)+(c&HPEE_PORT_SIZE_MASK)+1;

8
drivers/rapidio/rio.c
View File

@ -117,7 +117,7 @@ int rio_request_inb_mbox(struct rio_mport *mport,
if (mport->ops->open_inb_mbox == NULL)
goto out;
res = kmalloc(sizeof(struct resource), GFP_KERNEL);
res = kzalloc(sizeof(struct resource), GFP_KERNEL);
if (res) {
rio_init_mbox_res(res, mbox, mbox);
@ -185,7 +185,7 @@ int rio_request_outb_mbox(struct rio_mport *mport,
if (mport->ops->open_outb_mbox == NULL)
goto out;
res = kmalloc(sizeof(struct resource), GFP_KERNEL);
res = kzalloc(sizeof(struct resource), GFP_KERNEL);
if (res) {
rio_init_mbox_res(res, mbox, mbox);
@ -285,7 +285,7 @@ int rio_request_inb_dbell(struct rio_mport *mport,
{
int rc = 0;
struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
if (res) {
rio_init_dbell_res(res, start, end);
@ -360,7 +360,7 @@ int rio_release_inb_dbell(struct rio_mport *mport, u16 start, u16 end)
struct resource *rio_request_outb_dbell(struct rio_dev *rdev, u16 start,
u16 end)
{
struct resource *res = kmalloc(sizeof(struct resource), GFP_KERNEL);
struct resource *res = kzalloc(sizeof(struct resource), GFP_KERNEL);
if (res) {
rio_init_dbell_res(res, start, end);

2
drivers/sh/superhyway/superhyway.c
View File

@ -66,7 +66,7 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev,
superhyway_read_vcr(dev, base, &dev->vcr);
if (!dev->resource) {
dev->resource = kmalloc(sizeof(struct resource), GFP_KERNEL);
dev->resource = kzalloc(sizeof(struct resource), GFP_KERNEL);
if (!dev->resource) {
kfree(dev);
return -ENOMEM;