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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	Nishad Kamdar <nishadkamdar@gmail.com>,
	Lorenzo Colitti <lorenzo@google.com>,
	David Lechner <david@lechnology.com>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [PATCH] USB: gadget: Fix a configfs return code
Date: Mon, 15 Feb 2021 18:57:16 +0300	[thread overview]
Message-ID: <YCqZ3P53yyIg5cn7@mwanda> (raw)

If the string is invalid, this should return -EINVAL instead of 0.

Fixes: 73517cf49bd4 ("usb: gadget: add RNDIS configfs options for class/subclass/protocol")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/usb/gadget/function/u_ether_configfs.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/function/u_ether_configfs.h b/drivers/usb/gadget/function/u_ether_configfs.h
index 3dfb460908fa..f558c3139ebe 100644
--- a/drivers/usb/gadget/function/u_ether_configfs.h
+++ b/drivers/usb/gadget/function/u_ether_configfs.h
@@ -182,12 +182,11 @@ out:									\
 						size_t len)		\
 	{								\
 		struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item);	\
-		int ret;						\
+		int ret = -EINVAL;					\
 		u8 val;							\
 									\
 		mutex_lock(&opts->lock);				\
-		ret = sscanf(page, "%02hhx", &val);			\
-		if (ret > 0) {						\
+		if (sscanf(page, "%02hhx", &val) > 0) {			\
 			opts->_n_ = val;				\
 			ret = len;					\
 		}							\
-- 
2.30.0


WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	Nishad Kamdar <nishadkamdar@gmail.com>,
	Lorenzo Colitti <lorenzo@google.com>,
	David Lechner <david@lechnology.com>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [PATCH] USB: gadget: Fix a configfs return code
Date: Mon, 15 Feb 2021 15:57:16 +0000	[thread overview]
Message-ID: <YCqZ3P53yyIg5cn7@mwanda> (raw)

If the string is invalid, this should return -EINVAL instead of 0.

Fixes: 73517cf49bd4 ("usb: gadget: add RNDIS configfs options for class/subclass/protocol")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/usb/gadget/function/u_ether_configfs.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/function/u_ether_configfs.h b/drivers/usb/gadget/function/u_ether_configfs.h
index 3dfb460908fa..f558c3139ebe 100644
--- a/drivers/usb/gadget/function/u_ether_configfs.h
+++ b/drivers/usb/gadget/function/u_ether_configfs.h
@@ -182,12 +182,11 @@ out:									\
 						size_t len)		\
 	{								\
 		struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item);	\
-		int ret;						\
+		int ret = -EINVAL;					\
 		u8 val;							\
 									\
 		mutex_lock(&opts->lock);				\
-		ret = sscanf(page, "%02hhx", &val);			\
-		if (ret > 0) {						\
+		if (sscanf(page, "%02hhx", &val) > 0) {			\
 			opts->_n_ = val;				\
 			ret = len;					\
 		}							\
-- 
2.30.0

             reply	other threads:[~2021-02-15 17:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-15 15:57 Dan Carpenter [this message]
2021-02-15 15:57 ` [PATCH] USB: gadget: Fix a configfs return code Dan Carpenter
2021-02-16  1:23 ` Lorenzo Colitti
2021-02-16  1:23   ` Lorenzo Colitti

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