cx231-417 uses kmalloc/kfree functions, so slab header needs to be included in order to fix the following build errors: drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘cx231xx_bulk_copy’: CC drivers/media/platform/qcom/venus/firmware.o drivers/media/usb/cx231xx/cx231xx-417.c:1389:11: error: implicit declaration of function ‘kmalloc’; did you mean ‘vmalloc’? [-Werror=implicit-function-declaration] buffer = kmalloc(buffer_size, GFP_ATOMIC); ^~~~~~~ vmalloc drivers/media/usb/cx231xx/cx231xx-417.c:1389:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion] buffer = kmalloc(buffer_size, GFP_ATOMIC); ^ drivers/media/usb/cx231xx/cx231xx-417.c:1400:2: error: implicit declaration of function ‘kfree’; did you mean ‘vfree’? [-Werror=implicit-function-declaration] kfree(buffer); ^~~~~ vfree drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘mpeg_open’: drivers/media/usb/cx231xx/cx231xx-417.c:1713:7: error: implicit declaration of function ‘kzalloc’; did you mean ‘vzalloc’? [-Werror=implicit-function-declaration] fh = kzalloc(sizeof(*fh), GFP_KERNEL); ^~~~~~~ vzalloc drivers/media/usb/cx231xx/cx231xx-417.c:1713:5: warning: assignment makes pointer from integer without a cast [-Wint-conversion] fh = kzalloc(sizeof(*fh), GFP_KERNEL); ^ Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx> --- drivers/media/usb/cx231xx/cx231xx-417.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c index b80e6857e2eb..2f3b0564d676 100644 --- a/drivers/media/usb/cx231xx/cx231xx-417.c +++ b/drivers/media/usb/cx231xx/cx231xx-417.c @@ -29,6 +29,7 @@ #include <linux/delay.h> #include <linux/device.h> #include <linux/firmware.h> +#include <linux/slab.h> #include <linux/vmalloc.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> -- 2.17.0