x86: acpi: Add memset to initialize SPCR table

Add a missing memset to acpi_create_spcr().

The other acpi_create_xxxx() functions perform a memset on their
structures, acpi_create_spcr() does not and as a result the contents of
this table are partly uninitialized (and thus random after every reset).

Fixes: b288cd960072 ("x86: acpi: Generate SPCR table")
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fix the tags format in the commit message]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c
index 6b827bfa3f6901e69309934e9b8037a929ac7c5e..c445aa68703743d3b40c97a68f6e71b01d8adde3 100644 (file)
--- a/arch/x86/lib/acpi_table.c
+++ b/arch/x86/lib/acpi_table.c
@@ -252,6 +252,8 @@ static void acpi_create_spcr(struct acpi_spcr *spcr)
        int space_id;
        int ret = -ENODEV;
 
+       memset((void *)spcr, 0, sizeof(struct acpi_spcr));
+
        /* Fill out header fields */
        acpi_fill_header(header, "SPCR");
        header->length = sizeof(struct acpi_spcr);