treewide: Replace kmalloc with kmalloc_obj for non-scalar types

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/proc/root.c b/fs/proc/root.c
index d8ca41d823e4..fb0ccacb08e6 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -249,7 +249,7 @@ static int proc_fill_super(struct super_block *s, struct fs_context *fc)
 	struct proc_fs_info *fs_info;
 	int ret;
 
-	fs_info = kzalloc(sizeof(*fs_info), GFP_KERNEL);
+	fs_info = kzalloc_obj(*fs_info, GFP_KERNEL);
 	if (!fs_info)
 		return -ENOMEM;
 
@@ -331,7 +331,7 @@ static int proc_init_fs_context(struct fs_context *fc)
 {
 	struct proc_fs_context *ctx;
 
-	ctx = kzalloc(sizeof(struct proc_fs_context), GFP_KERNEL);
+	ctx = kzalloc_obj(struct proc_fs_context, GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;