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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2017-02-02 17:41:26 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-02-07 13:21:15 +0100
commit9426998ce6f8616c48c2834cafbe5616da3f5abd (patch)
tree03990e849cc0985423227886b1b65772a6eb8526
parentbec84da8d1da6677c458e6eedd8e814eea91b9fc (diff)
downloadlinux-9426998ce6f8616c48c2834cafbe5616da3f5abd.tar.bz2
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>
-rw-r--r--drivers/base/property.c10
-rw-r--r--include/linux/property.h12
2 files changed, 11 insertions, 11 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c
index e9fa75645d69..31b942a29fdc 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -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);
diff --git a/include/linux/property.h b/include/linux/property.h
index d37a4498b3ac..7a0a1cce5165 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -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;