Re: [PATCH] misc: atmel-ssc: Handle return value of clk_prepare_enable and clk_prepare
From: kbuild test robot
Date: Thu Jun 01 2017 - 09:15:23 EST
Hi Arvind,
[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on v4.12-rc3 next-20170601]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Arvind-Yadav/misc-atmel-ssc-Handle-return-value-of-clk_prepare_enable-and-clk_prepare/20170601-191011
config: xtensa-allmodconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 4.9.0
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=xtensa
All warnings (new ones prefixed by >>):
drivers/misc/atmel-ssc.c: In function 'ssc_request':
>> drivers/misc/atmel-ssc.c:67:3: warning: return makes pointer from integer without a cast
return ret;
^
vim +67 drivers/misc/atmel-ssc.c
51 spin_unlock(&user_lock);
52 pr_err("ssc: ssc%d platform device is missing\n", ssc_num);
53 return ERR_PTR(-ENODEV);
54 }
55
56 if (ssc->user) {
57 spin_unlock(&user_lock);
58 dev_dbg(&ssc->pdev->dev, "module busy\n");
59 return ERR_PTR(-EBUSY);
60 }
61 ssc->user++;
62 spin_unlock(&user_lock);
63
64 ret = clk_prepare(ssc->clk);
65 if (ret) {
66 pr_err("Failed to prepare clock\n");
> 67 return ret;
68 }
69
70 return ssc;
71 }
72 EXPORT_SYMBOL(ssc_request);
73
74 void ssc_free(struct ssc_device *ssc)
75 {
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