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, 3 insertions, 3 deletions

diff --git a/fs/squashfs/decompressor_multi.c b/fs/squashfs/decompressor_multi.c
index 416c53eedbd1..4d7bc620bef5 100644
--- a/fs/squashfs/decompressor_multi.c
+++ b/fs/squashfs/decompressor_multi.c
@@ -65,7 +65,7 @@ static void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
 	struct decomp_stream *decomp_strm = NULL;
 	int err = -ENOMEM;
 
-	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+	stream = kzalloc_obj(*stream, GFP_KERNEL);
 	if (!stream)
 		goto out;
 
@@ -80,7 +80,7 @@ static void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
 	 * we could always fall back to default decompressor and
 	 * file system works.
 	 */
-	decomp_strm = kmalloc(sizeof(*decomp_strm), GFP_KERNEL);
+	decomp_strm = kmalloc_obj(*decomp_strm, GFP_KERNEL);
 	if (!decomp_strm)
 		goto out;
 
@@ -148,7 +148,7 @@ static struct decomp_stream *get_decomp_stream(struct squashfs_sb_info *msblk,
 			goto wait;
 
 		/* Let's allocate new decomp */
-		decomp_strm = kmalloc(sizeof(*decomp_strm), GFP_KERNEL);
+		decomp_strm = kmalloc_obj(*decomp_strm, GFP_KERNEL);
 		if (!decomp_strm)
 			goto wait;