linux-kernel - [PATCH 2/2] platform/x86: intel_mid

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Message-Id: <1483370456-30786-2-git-send-email-javier@osg.samsung.com>
Date:   Mon,  2 Jan 2017 12:20:56 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Darren Hart <dvhart@...radead.org>,
        platform-driver-x86@...r.kernel.org
Subject: [PATCH 2/2] platform/x86: intel_mid_thermal: Fix module autoload

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/platform/x86/intel_mid_thermal.ko | grep alias
$

After this patch:

$ modinfo drivers/platform/x86/intel_mid_thermal.ko | grep alias
alias:          platform:msic_thermal

Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>

---

 drivers/platform/x86/intel_mid_thermal.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/intel_mid_thermal.c b/drivers/platform/x86/intel_mid_thermal.c
index 05ac7203806d..008a76903cbf 100644
--- a/drivers/platform/x86/intel_mid_thermal.c
+++ b/drivers/platform/x86/intel_mid_thermal.c
@@ -551,6 +551,7 @@ static const struct platform_device_id therm_id_table[] = {
 	{ DRIVER_NAME, 1 },
 	{ }
 };
+MODULE_DEVICE_TABLE(platform, therm_id_table);
 
 static struct platform_driver mid_thermal_driver = {
 	.driver = {
-- 
2.7.4