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, 5 insertions, 7 deletions

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index ae43c656f108..a109d4dd5316 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1532,7 +1532,7 @@ static struct opp_table *_allocate_opp_table(struct device *dev, int index)
 	 * Allocate a new OPP table. In the infrequent case where a new
 	 * device is needed to be added, we pay this penalty.
 	 */
-	opp_table = kzalloc(sizeof(*opp_table), GFP_KERNEL);
+	opp_table = kzalloc_obj(*opp_table, GFP_KERNEL);
 	if (!opp_table)
 		return ERR_PTR(-ENOMEM);
 
@@ -2260,9 +2260,8 @@ static int _opp_set_regulators(struct opp_table *opp_table, struct device *dev,
 	if (opp_table->regulators)
 		return 0;
 
-	opp_table->regulators = kmalloc_array(count,
-					      sizeof(*opp_table->regulators),
-					      GFP_KERNEL);
+	opp_table->regulators = kmalloc_objs(*opp_table->regulators, count,
+					     GFP_KERNEL);
 	if (!opp_table->regulators)
 		return -ENOMEM;
 
@@ -2364,8 +2363,7 @@ static int _opp_set_clknames(struct opp_table *opp_table, struct device *dev,
 	if (opp_table->clks)
 		return 0;
 
-	opp_table->clks = kmalloc_array(count, sizeof(*opp_table->clks),
-					GFP_KERNEL);
+	opp_table->clks = kmalloc_objs(*opp_table->clks, count, GFP_KERNEL);
 	if (!opp_table->clks)
 		return -ENOMEM;
 
@@ -2550,7 +2548,7 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 	unsigned int id;
 	int ret;
 
-	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	data = kmalloc_obj(*data, GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;