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| author |   Colin Ian King <colin.king@canonical.com> | 2021-01-11 14:46:48 +0000 |
|---|---|---|
| committer |   Hans de Goede <hdegoede@redhat.com> | 2021-01-13 10:25:10 +0100 |
| commit | d26cbdd27f8c4ff2f3df227a8bc5782697ecce51 (patch) | |
| tree | 8352fb176843fd6f5b3a6e23ab1aac7245c5ba10 /drivers/platform/surface/aggregator/ssh_request_layer.c | |
| parent | platform/x86: ideapad-laptop: Disable touchpad_switch for ELAN0634 (diff) | |
| download | linux-dev-d26cbdd27f8c4ff2f3df227a8bc5782697ecce51.tar.xz linux-dev-d26cbdd27f8c4ff2f3df227a8bc5782697ecce51.zip | |
platform/surface: fix potential integer overflow on shift of a int
The left shift of int 32 bit integer constant 1 is evaluated using 32 bit
arithmetic and then passed as a 64 bit function argument. In the case where
func is 32 or more this can lead to an oveflow. Avoid this by shifting
using the BIT_ULL macro instead.
Addresses-Coverity: ("Unintentional integer overflow")
Fixes: fc00bc8ac1da ("platform/surface: Add Surface ACPI Notify driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20210111144648.20498-1-colin.king@canonical.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/surface/aggregator/ssh_request_layer.c')
0 files changed, 0 insertions, 0 deletions