Fix smatch warnings:
drivers/media/pci/mgb4/mgb4_sysfs_out.c:118 video_source_store() warn: potential spectre issue 'mgbdev->vin' [r] (local cap)
drivers/media/pci/mgb4/mgb4_sysfs_out.c:122 video_source_store() warn: possible spectre second half. 'loopin_new'
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Martin Tůma <martin.tuma@digiteqautomotive.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
*/
#include <linux/device.h>
+#include <linux/nospec.h>
#include "mgb4_core.h"
#include "mgb4_i2c.h"
#include "mgb4_vout.h"
if (((config & 0xc) >> 2) < MGB4_VIN_DEVICES)
loopin_old = mgbdev->vin[(config & 0xc) >> 2];
- if (val < MGB4_VIN_DEVICES)
+ if (val < MGB4_VIN_DEVICES) {
+ val = array_index_nospec(val, MGB4_VIN_DEVICES);
loopin_new = mgbdev->vin[val];
+ }
if (loopin_old && loopin_cnt(loopin_old) == 1)
mgb4_mask_reg(&mgbdev->video, loopin_old->config->regs.config,
0x2, 0x0);