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device property: constify property arrays values 

Data that is fed into property arrays should not be modified, so let's mark
relevant pointers as const. This will allow us making source arrays as
const/__initconst.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dmitry Torokhov 2017-02-02 17:41:26 -08:00 committed by Rafael J. Wysocki
parent bec84da8d1
commit 9426998ce6
2 changed files with 11 additions and 11 deletions
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10
drivers/base/property.c
View File

@ -718,7 +718,8 @@ static void pset_free_set(struct property_set *pset)
static int pset_copy_entry(struct property_entry *dst,
const struct property_entry *src)
{
const char **d, **s;
const char * const *s;
char **d;
size_t i, nval;
dst->name = kstrdup(src->name, GFP_KERNEL);
@ -731,12 +732,11 @@ static int pset_copy_entry(struct property_entry *dst,
if (src->is_string) {
nval = src->length / sizeof(const char *);
dst->pointer.str = kcalloc(nval, sizeof(const char *),
GFP_KERNEL);
if (!dst->pointer.str)
d = kcalloc(nval, sizeof(const char *), GFP_KERNEL);
if (!d)
return -ENOMEM;
d = dst->pointer.str;
dst->pointer.raw_data = d;
s = src->pointer.str;
for (i = 0; i < nval; i++) {
d[i] = kstrdup(s[i], GFP_KERNEL);

12
include/linux/property.h
View File

@ -160,12 +160,12 @@ struct property_entry {
bool is_string;
union {
union {
void *raw_data;
u8 *u8_data;
u16 *u16_data;
u32 *u32_data;
u64 *u64_data;
const char **str;
const void *raw_data;
const u8 *u8_data;
const u16 *u16_data;
const u32 *u32_data;
const u64 *u64_data;
const char * const *str;
} pointer;
union {
unsigned long long raw_data;