linux-kernel - RE: drivers/edac/i10nm_base.c:256 i10nm_get_hbm_munits() warn: 'mbase' not released on lines: 249.

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Message-ID: <DM8PR11MB56692F596CAAC7D7AA252B4789789@DM8PR11MB5669.namprd11.prod.outlook.com>
Date:   Fri, 17 Dec 2021 13:29:08 +0000
From:   "Zhuo, Qiuxu" <qiuxu.zhuo@...el.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>,
        "kbuild@...ts.01.org" <kbuild@...ts.01.org>
CC:     lkp <lkp@...el.com>,
        "kbuild-all@...ts.01.org" <kbuild-all@...ts.01.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Luck, Tony" <tony.luck@...el.com>
Subject: RE: drivers/edac/i10nm_base.c:256 i10nm_get_hbm_munits() warn:
 'mbase' not released on lines: 249.

> From: Dan Carpenter <dan.carpenter@...cle.com>
> ...
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
> 

Sure. Will add the above tags in the fix patch.

> smatch warnings:
> drivers/edac/i10nm_base.c:256 i10nm_get_hbm_munits() warn: 'mbase' not released on lines: 249.
> ...
> mbase =ioremap(base + off, I10NM_HBM_IMC_MMIO_SIZE);
>                                                                 ^^^^^^^^^^^^^^^^
>...			
> if (!I10NM_IS_HBM_IMC(mcmtr)) {
> 	i10nm_printk(KERN_ERR, "This isn't an hbm mc!\n");
>            return -ENODEV;
> }
> No clean up before the return.

Thanks for catching this issue. Will fix it.

- Qiuxu