linux-kernel - [PATCH 4.4 31/40] platform/x86: intel_mid

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Date:   Mon,  6 Nov 2017 10:45:06 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Javier Martinez Canillas <javier@....samsung.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.4 31/40] platform/x86: intel_mid_thermal: Fix module autoload

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Javier Martinez Canillas <javier@....samsung.com>


[ Upstream commit a93151a72061e944a4915458b1b1d6d505c03bbf ]

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>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/platform/x86/intel_mid_thermal.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/platform/x86/intel_mid_thermal.c
+++ b/drivers/platform/x86/intel_mid_thermal.c
@@ -550,6 +550,7 @@ static const struct platform_device_id t
 	{ "msic_thermal", 1 },
 	{ }
 };
+MODULE_DEVICE_TABLE(platform, therm_id_table);
 
 static struct platform_driver mid_thermal_driver = {
 	.driver = {