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platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning

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Explicitly check the status rather then relying on output.pointer staying
NULL on an error.

Reported-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210204121931.131617-1-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2021-02-04 13:19:31 +01:00
parent f807f4b7b3
commit 2c15644ebe
1 changed files with 2 additions and 0 deletions
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drivers/platform/x86/msi-wmi.c
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@ -96,6 +96,8 @@ static int msi_wmi_query_block(int instance, int *ret)
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
status = wmi_query_block(MSIWMI_BIOS_GUID, instance, &output);
if (ACPI_FAILURE(status))
return -EIO;
obj = output.pointer;