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-rw-r--r--kernel/gcov/fs.c24
1 files changed, 9 insertions, 15 deletions
diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index 2d29e1d1225d..40ea81c0475b 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -97,9 +97,9 @@ __setup("gcov_persist=", gcov_persist_setup);
*/
struct gcov_iterator {
struct gcov_info *info;
- void *buffer;
size_t size;
loff_t pos;
+ char buffer[];
};
/**
@@ -111,25 +111,20 @@ struct gcov_iterator {
static struct gcov_iterator *gcov_iter_new(struct gcov_info *info)
{
struct gcov_iterator *iter;
+ size_t size;
+
+ /* Dry-run to get the actual buffer size. */
+ size = convert_to_gcda(NULL, info);
- iter = kzalloc(sizeof(struct gcov_iterator), GFP_KERNEL);
+ iter = vmalloc(struct_size(iter, buffer, size));
if (!iter)
- goto err_free;
+ return NULL;
iter->info = info;
- /* Dry-run to get the actual buffer size. */
- iter->size = convert_to_gcda(NULL, info);
- iter->buffer = vmalloc(iter->size);
- if (!iter->buffer)
- goto err_free;
-
+ iter->size = size;
convert_to_gcda(iter->buffer, info);
return iter;
-
-err_free:
- kfree(iter);
- return NULL;
}
@@ -139,8 +134,7 @@ err_free:
*/
static void gcov_iter_free(struct gcov_iterator *iter)
{
- vfree(iter->buffer);
- kfree(iter);
+ vfree(iter);
}
/**