[PATCH 01/21] ACPI-video: Use kmalloc_array() in acpi_video_get_levels()

SF Markus Elfring
2016-09-05T16:45:30Z

Date: Mon, 5 Sep 2016 11:33:30 +0200

A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/acpi/acpi_video.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index c5557d0..3d39b53 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -784,8 +784,9 @@ int acpi_video_get_levels(struct acpi_device *device,
goto out;
}

- br->levels = kmalloc((obj->package.count + 2) * sizeof *(br->levels),
- GFP_KERNEL);
+ br->levels = kmalloc_array(obj->package.count + 2,
+ sizeof(*br->levels),
+ GFP_KERNEL);
if (!br->levels) {
result = -ENOMEM;
goto out_free;
--
2.10.0