[PATCH v2 1/9] ACPI-video: Use kmalloc_array() in acpi_video_get_levels()
From: SF Markus Elfring
Date: Wed Aug 09 2017 - 11:34:00 EST
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 9 Aug 2017 14:52:25 +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@xxxxxxxxxxxxxxxxxxxxx>
---
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 0972ec0e2eb8..1aaf2b591ca8 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -832,8 +832,9 @@ int acpi_video_get_levels(struct acpi_device *device,
* in order to account for buggy BIOS which don't export the first two
* special levels (see below)
*/
- br->levels = kmalloc((obj->package.count + ACPI_VIDEO_FIRST_LEVEL) *
- sizeof(*br->levels), GFP_KERNEL);
+ br->levels = kmalloc_array(obj->package.count + ACPI_VIDEO_FIRST_LEVEL,
+ sizeof(*br->levels),
+ GFP_KERNEL);
if (!br->levels) {
result = -ENOMEM;
goto out_free;
--
2.13.4