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| author | Dan Carpenter <dan.carpenter@linaro.org> | 2023-07-18 10:05:05 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-07-26 17:15:45 +0300 |
| commit | 93d99fd8e605c09ae8521a19c2b08b57b8cc4165 (patch) | |
| tree | 8f9ddeb2d2d998159bf723e44a8a59552343c149 /drivers/platform/x86 | |
| parent | 5d36931f0fe51665c04f56c027613d22e6a03411 (diff) | |
| download | linux-93d99fd8e605c09ae8521a19c2b08b57b8cc4165.tar.xz | |
platform/x86: hp-bioscfg: fix a signedness bug in hp_wmi_perform_query()
The error handling won't work if "mid" is unsigned. "ret" is used to
store negative error codes and declaring it as a u32 won't cause a bug
but it's ugly. The "actual_outsize" variable is a number between 0-4096
so it can be declared as int as well.
Fixes: 69ea03e38f24 ("platform/x86: hp-bioscfg: biosattr-interface")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/ad0a6ad9-099b-40a4-ae91-b9dca622ff4e@moroto.mountain
Reviewed-by: Jorge Lopez <jorge.lopez2@hp.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/hp/hp-bioscfg/biosattr-interface.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/platform/x86/hp/hp-bioscfg/biosattr-interface.c b/drivers/platform/x86/hp/hp-bioscfg/biosattr-interface.c index 1d59ad600b84..dea54f35b8b5 100644 --- a/drivers/platform/x86/hp/hp-bioscfg/biosattr-interface.c +++ b/drivers/platform/x86/hp/hp-bioscfg/biosattr-interface.c @@ -123,7 +123,7 @@ int hp_wmi_perform_query(int query, enum hp_wmi_command command, void *buffer, struct bios_return *bios_return; union acpi_object *obj = NULL; struct bios_args *args = NULL; - u32 mid, actual_outsize, ret; + int mid, actual_outsize, ret; size_t bios_args_size; mid = hp_encode_outsize_for_pvsz(outsize); |