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Diffstat (limited to 'drivers/usb/input/map_to_7segment.h')
-rw-r--r--drivers/usb/input/map_to_7segment.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/input/map_to_7segment.h b/drivers/usb/input/map_to_7segment.h
index 52ff27f1512..a424094d9fe 100644
--- a/drivers/usb/input/map_to_7segment.h
+++ b/drivers/usb/input/map_to_7segment.h
@@ -79,7 +79,7 @@ struct seg7_conversion_map {
static inline int map_to_seg7(struct seg7_conversion_map *map, int c)
{
- return c & 0x7f ? map->table[c] : -EINVAL;
+ return c >= 0 && c < sizeof(map->table) ? map->table[c] : -EINVAL;
}
#define SEG7_CONVERSION_MAP(_name, _map) \