[PATCH v5 08/17] drivers/base: make device_find_child_by_name() compatible with sysfs inputs

From: Dan Williams <dan.j.williams@intel.com>
To: akpm@linux-foundation.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	vishal.l.verma@intel.com, dave.hansen@linux.intel.com,
	linux-mm@kvack.org, linux-nvdimm@lists.01.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v5 08/17] drivers/base: make device_find_child_by_name() compatible with sysfs inputs
Date: Fri, 25 Sep 2020 12:12:25 -0700	[thread overview]
Message-ID: <160106114576.30709.2960091665444712180.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <160106109960.30709.7379926726669669398.stgit@dwillia2-desk3.amr.corp.intel.com>

Use sysfs_streq() in device_find_child_by_name() to allow it to use a
sysfs input string that might contain a trailing newline.

The other "device by name" interfaces,
{bus,driver,class}_find_device_by_name(), already account for sysfs
strings.

Link: https://lkml.kernel.org/r/159643102106.4062302.12229802117645312104.stgit@dwillia2-desk3.amr.corp.intel.com
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/base/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index bb5806a2bd4c..8dd753539c06 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -3324,7 +3324,7 @@ struct device *device_find_child_by_name(struct device *parent,
 
 	klist_iter_init(&parent->p->klist_children, &i);
 	while ((child = next_device(&i)))
-		if (!strcmp(dev_name(child), name) && get_device(child))
+		if (sysfs_streq(dev_name(child), name) && get_device(child))
 			break;
 	klist_iter_exit(&i);
 	return child;

