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From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
To: Jiri Kosina <jikos@kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/4] HID: input: do not append a suffix if the name already has it
Date: Tue,  4 Sep 2018 15:31:13 +0200	[thread overview]
Message-ID: <20180904133115.5111-3-benjamin.tissoires@redhat.com> (raw)
In-Reply-To: <20180904133115.5111-1-benjamin.tissoires@redhat.com>

Or it creates some weird input names like:
"MI Dongle MI Wireless Mouse Mouse"

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
 drivers/hid/hid-input.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index ac201817a2dd..1e9ba8f7a16b 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1516,6 +1516,7 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
 	struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
 	struct input_dev *input_dev = input_allocate_device();
 	const char *suffix = NULL;
+	size_t suffix_len, name_len;
 
 	if (!hidinput || !input_dev)
 		goto fail;
@@ -1559,10 +1560,15 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
 	}
 
 	if (suffix) {
-		hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
-					   hid->name, suffix);
-		if (!hidinput->name)
-			goto fail;
+		name_len = strlen(hid->name);
+		suffix_len = strlen(suffix);
+		if ((name_len < suffix_len) ||
+		    strcmp(hid->name + name_len - suffix_len, suffix)) {
+			hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
+						   hid->name, suffix);
+			if (!hidinput->name)
+				goto fail;
+		}
 	}
 
 	input_set_drvdata(input_dev, hid);
-- 
2.14.3


  parent reply	other threads:[~2018-09-04 13:31 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-04 13:31 [PATCH 0/4] HID fixes Benjamin Tissoires
2018-09-04 13:31 ` [PATCH 1/4] HID: multitouch: fix Elan panels with 2 input modes declaration Benjamin Tissoires
2018-09-04 19:31   ` Jiri Kosina
2018-09-05  7:01     ` Benjamin Tissoires
2018-09-04 13:31 ` Benjamin Tissoires [this message]
2018-09-04 13:31 ` [PATCH 3/4] HID: core: fix grouping by application Benjamin Tissoires
2018-09-04 13:31 ` [PATCH 4/4] HID: multitouch: simplify the application retrieval Benjamin Tissoires
2018-09-04 19:33 ` [PATCH 0/4] HID fixes Jiri Kosina

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