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| author | Barnabás Pőcze <pobrn@protonmail.com> | 2022-10-05 15:00:45 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-14 10:15:16 +0100 |
| commit | 2f2ae35c001213d35e49590380613978e4584389 (patch) | |
| tree | 83330b2071baab98871d865223228e28241fd996 /drivers/platform/x86 | |
| parent | a1014fbc83e799003b60ae2b745c65147cebb86c (diff) | |
platform/x86: huawei-wmi: fix return value calculation
[ Upstream commit 0b9a1dcdb6a2c841899389bf2dd7a3e0e2aa0e99 ]
Previously, `huawei_wmi_input_setup()` returned the result of
logical or-ing the return values of two functions that return negative
errno-style error codes and one that returns `acpi_status`. If this
returned value was non-zero, then it was propagated from the platform
driver's probe function. That function should return a negative
errno-style error code, so the result of the logical or that
`huawei_wmi_input_setup()` returned was not appropriate.
Fix that by checking each function separately and returning the
error code unmodified.
Fixes: 1ac9abeb2e5b ("platform/x86: huawei-wmi: Move to platform driver")
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20221005150032.173198-2-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/huawei-wmi.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/platform/x86/huawei-wmi.c b/drivers/platform/x86/huawei-wmi.c index eac3e6b4ea11..935562c870c3 100644 --- a/drivers/platform/x86/huawei-wmi.c +++ b/drivers/platform/x86/huawei-wmi.c @@ -760,6 +760,9 @@ static int huawei_wmi_input_setup(struct device *dev, const char *guid, struct input_dev **idev) { + acpi_status status; + int err; + *idev = devm_input_allocate_device(dev); if (!*idev) return -ENOMEM; @@ -769,10 +772,19 @@ static int huawei_wmi_input_setup(struct device *dev, (*idev)->id.bustype = BUS_HOST; (*idev)->dev.parent = dev; - return sparse_keymap_setup(*idev, huawei_wmi_keymap, NULL) || - input_register_device(*idev) || - wmi_install_notify_handler(guid, huawei_wmi_input_notify, - *idev); + err = sparse_keymap_setup(*idev, huawei_wmi_keymap, NULL); + if (err) + return err; + + err = input_register_device(*idev); + if (err) + return err; + + status = wmi_install_notify_handler(guid, huawei_wmi_input_notify, *idev); + if (ACPI_FAILURE(status)) + return -EIO; + + return 0; } static void huawei_wmi_input_exit(struct device *dev, const char *guid) |