[PATCH 1/2] drm/bridge: sii902x: Enable I/O and core VCC supplies if present

[Dan Carpenter]

Hi Alexandru,

url:    https://github.com/0day-ci/linux/commits/Alexandru-Gagniuc/drm-bridge-sii902x-Enable-I-O-and-core-VCC-supplies-if-present/20200925-041504
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-m001-20200925 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

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

smatch warnings:
drivers/gpu/drm/bridge/sii902x.c:1013 sii902x_probe() warn: passing zero to 'PTR_ERR'

vim +/PTR_ERR +1013 drivers/gpu/drm/bridge/sii902x.c

6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24   999  	sii902x->cvcc12 = devm_regulator_get(dev, "cvcc12");
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1000  	if (IS_ERR(sii902x->cvcc12))
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1001  		return PTR_ERR(sii902x->cvcc12);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1002  
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1003  	ret = regulator_enable(sii902x->iovcc);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1004  	if (ret < 0) {
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1005  		dev_err(dev, "Failed to enable iovcc supply: %d\n", ret);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1006  		return ret;
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1007  	}
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1008  
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1009  	ret = regulator_enable(sii902x->cvcc12);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1010  	if (ret < 0) {
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1011  		dev_err(dev, "Failed to enable cvcc12 supply: %d\n", ret);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1012  		regulator_disable(sii902x->iovcc);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24 @1013  		return PTR_ERR(sii902x->cvcc12);

return ret;

6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1014  	}
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1015  
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1016  	ret = sii902x_init(sii902x);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1017  	if (ret < 0) {
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1018  		regulator_disable(sii902x->cvcc12);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1019  		regulator_disable(sii902x->iovcc);
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1020  	}
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1021  
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1022  	return ret;
6f6c7f7bbe3f177 Alexandru Gagniuc 2020-09-24  1023  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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