From: Axel Lin <axel.lin@xxxxxxxxx> According to the comments of write_acpi_int_ret(), write_acpi_int_ret() should return 0 if write is successful, -1 else. Thus if handle is NULL, the write does not happen, it should return -1. Signed-off-by: Axel Lin <axel.lin@xxxxxxxxx> Cc: Matthew Garrett <mjg@xxxxxxxxxx> Cc: Corentin Chary <corentincj@xxxxxxxxxx> Cc: Alan Jenkins <alan-jenkins@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/platform/x86/asus-laptop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN drivers/platform/x86/asus-laptop.c~asus-laptop-fix-incorrect-return-value-for-write_acpi_int_ret-if-handle-is-null drivers/platform/x86/asus-laptop.c --- a/drivers/platform/x86/asus-laptop.c~asus-laptop-fix-incorrect-return-value-for-write_acpi_int_ret-if-handle-is-null +++ a/drivers/platform/x86/asus-laptop.c @@ -297,7 +297,7 @@ static int write_acpi_int_ret(acpi_handl acpi_status status; if (!handle) - return 0; + return -1; params.count = 1; params.pointer = &in_obj; _ -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html