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Date: Sun, 9 Jul 2017 03:52:27 +0800
From: kbuild test robot <lkp@intel.com>
To: sathyanarayanan.kuppuswamy@linux.intel.com
Cc: kbuild-all@01.org, peda@axentia.se, linux-kernel@vger.kernel.org,
        sathyaosid@gmail.com,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@linux.intel.com>
Subject: [PATCH] mux: fix err_cast.cocci warnings
Message-ID: <20170708195227.GA79324@lkp-wsx02>
References: <201707090345.hNncIqtF%fengguang.wu@intel.com>
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drivers/mux/mux-core.c:491:9-16: WARNING: ERR_CAST can be used with mux_chip


 Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

Generated by: scripts/coccinelle/api/err_cast.cocci

Fixes: 1203d8a531ed ("mux: Add new API to get mux_control ref by device name.")
CC: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---

 mux-core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mux/mux-core.c
+++ b/drivers/mux/mux-core.c
@@ -488,7 +488,7 @@ struct mux_control *mux_control_get_by_i
 	mux_chip = mux_chip_get_by_index(devname, chip_index);
 
 	if (IS_ERR(mux_chip))
-		return ERR_PTR(PTR_ERR(mux_chip));
+		return ERR_CAST(mux_chip);
 
 	if (ctrl_index >= mux_chip->controllers) {
 		dev_err(&mux_chip->dev,