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Commit 5e3e2297 authored by Mario Limonciello's avatar Mario Limonciello Committed by Darren Hart (VMware)
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platform/x86: wmi: release mutex on module acquistion failure 



This failure mode should have also released the mutex.

Signed-off-by: default avatarMario Limonciello <mario.limonciello@dell.com>
Signed-off-by: default avatarDarren Hart (VMware) <dvhart@infradead.org>
parent 54d11736

drivers/platform/x86/wmi.c

+4 −2
Original line number Diff line number Diff line
@@ -868,8 +868,10 @@ static long wmi_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
	/* let the driver do any filtering and do the call */

	wdriver = container_of(wblock->dev.dev.driver,

			       struct wmi_driver, driver);

	if (!try_module_get(wdriver->driver.owner))

		return -EBUSY;

	if (!try_module_get(wdriver->driver.owner)) {

		ret = -EBUSY;

		goto out_ioctl;

	}

	ret = wdriver->filter_callback(&wblock->dev, cmd, buf);

	module_put(wdriver->driver.owner);

	if (ret)