linux-kernel - Re: [PATCH] FMC: misc_register should not be called while atomic

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Message-ID: <20140416223942.GA2020@mail.gnudd.com>
Date:	Thu, 17 Apr 2014 00:39:42 +0200
From:	Alessandro Rubini <rubini@...dd.com>
To:	gregkh@...uxfoundation.org
Cc:	jet.chen@...el.com, fengguang.wu@...el.com,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH] FMC: misc_register should not be called while atomic

>> --- a/drivers/fmc/fmc-chardev.c
>> +++ b/drivers/fmc/fmc-chardev.c
>> @@ -141,8 +141,8 @@ static int fc_probe(struct fmc_device *fmc)
>>  	fc->misc.fops = &fc_fops;
>>  	fc->misc.name = kstrdup(dev_name(&fmc->dev), GFP_KERNEL);
>>  
>> -	spin_lock(&fc_lock);
>>  	ret = misc_register(&fc->misc);
>> +	spin_lock(&fc_lock);
>>  	if (ret < 0) {
>>  		kfree(fc->misc.name);
>>  		kfree(fc);
>> -- 
>> 1.9.1

This is already applied, though in a slightly different way. Commit
783c2fb1b. I fixed it in Jul 13 2013 after user reports.

"git tag --contains 783c2fb1b" reports v3.12-rc1 and later

/alessandro
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