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| author | Lee, Chun-Yi <joeyli.kernel@gmail.com> | 2017-06-20 17:06:23 +0800 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-06-20 20:23:17 +0300 |
| commit | 62fc743cafd07e134292d510827a80b3c01df784 (patch) | |
| tree | 2d8a96d0c5b346eb100ae7a6966f4244804f1a6e | |
| parent | b2f2fe205c3b9b595dc50ee431230a45d03f9c2c (diff) | |
| download | linux-stable-62fc743cafd07e134292d510827a80b3c01df784.tar.gz linux-stable-62fc743cafd07e134292d510827a80b3c01df784.tar.bz2 linux-stable-62fc743cafd07e134292d510827a80b3c01df784.zip | |
platform/x86: acer-wmi: Using zero as first WMI instance number
Pali Rohár found that there have some wmi query/evaluation
code that they used 'one' as the first WMI instance number.
But the number is indexed from zero that it's must less than
the instance_count in _WDG.
This patch changes those instance number from one to zero.
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| -rw-r--r-- | drivers/platform/x86/acer-wmi.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 3b381178039b..1be71f956d5c 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -703,7 +703,7 @@ struct acpi_buffer *result) input.length = sizeof(struct wmab_args); input.pointer = (u8 *)regbuf; - status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result); + status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result); return status; } @@ -968,7 +968,7 @@ WMI_execute_u32(u32 method_id, u32 in, u32 *out) u32 tmp = 0; acpi_status status; - status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); + status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result); if (ACPI_FAILURE(status)) return status; @@ -1282,7 +1282,7 @@ static acpi_status __init WMID_set_capabilities(void) acpi_status status; u32 devices; - status = wmi_query_block(WMID_GUID2, 1, &out); + status = wmi_query_block(WMID_GUID2, 0, &out); if (ACPI_FAILURE(status)) return status; @@ -2025,7 +2025,7 @@ static u32 get_wmid_devices(void) acpi_status status; u32 devices = 0; - status = wmi_query_block(WMID_GUID2, 1, &out); + status = wmi_query_block(WMID_GUID2, 0, &out); if (ACPI_FAILURE(status)) return 0; |