platform-drivers-x86: dell-laptop: Remove unneeded mutex_init() for buffer_mutex

DEFINE_MUTEX() will automatically initialize buffer_mutex,
no need to call mutex_init() in dell_init().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index e39ab1d..f31fa4e 100644 (file)
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -612,7 +612,6 @@ static int __init dell_init(void)
        if (!bufferpage)
                goto fail_buffer;
        buffer = page_address(bufferpage);
-       mutex_init(&buffer_mutex);
 
        ret = dell_setup_rfkill();