From: Kieran Bingham <kieran@ksquared.org.uk>
To: Wolfram Sang <wsa@the-dreams.de>,
Lee Jones <lee.jones@linaro.org>,
Kieran Bingham <kieran@ksquared.org.uk>
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
Javier Martinez Canillas <javier@osg.samsung.com>,
sameo@linux.intel.com
Subject: [PATCHv6 08/11] i2c: match vendorless strings on the internal string length
Date: Tue, 25 Oct 2016 17:41:52 +0100 [thread overview]
Message-ID: <1477413715-22894-9-git-send-email-kieran@bingham.xyz> (raw)
In-Reply-To: <1477413715-22894-1-git-send-email-kieran@bingham.xyz>
If a user provides a shortened string to match a device to the sysfs i2c
interface it will match on the first string that contains that string
prefix.
for example:
echo a 0x68 > /sys/bus/i2c/devices/i2c-2/new_device
will match as3711, as3722, and ak8975 incorrectly.
Signed-off-by: Kieran Bingham <kieran@bingham.xyz>
---
drivers/i2c/i2c-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 01bce56f733a..50c9cfdb87b7 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1708,7 +1708,7 @@ i2c_of_match_device_strip_vendor(const struct of_device_id *matches,
else
name++;
- if (!strncasecmp(client->name, name, strlen(client->name)))
+ if (!strncasecmp(client->name, name, strlen(name)))
return matches;
}
--
2.7.4
next prev parent reply other threads:[~2016-10-25 16:41 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-25 16:41 [PATCHv6 00/11] i2c: Relax mandatory I2C ID table passing Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 01/11] i2c: Add pointer dereference protection to i2c_match_id() Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 02/11] i2c: Add the ability to match device to compatible string without an of_node Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 03/11] i2c: Match using traditional OF methods, then by vendor-less compatible strings Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 04/11] i2c: Make I2C ID tables non-mandatory for DT'ed devices Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 05/11] i2c: Export i2c_match_id() for direct use by device drivers Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 06/11] i2c: Provide a temporary .probe_new() call-back type Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 07/11] i2c: match dt-style device names from sysfs interface Kieran Bingham
2016-10-26 8:55 ` Lee Jones
2016-10-25 16:41 ` Kieran Bingham [this message]
2016-10-26 8:53 ` [PATCHv6 08/11] i2c: match vendorless strings on the internal string length Lee Jones
2016-10-31 13:55 ` Peter Rosin
2016-10-31 15:01 ` Kieran Bingham
2016-11-01 7:22 ` Lee Jones
2016-10-25 16:41 ` [PATCHv6 09/11] mfd: 88pm860x: Move over to new I2C device .probe() call Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 10/11] mfd: as3722: Rid driver of superfluous I2C device ID structure Kieran Bingham
2016-10-25 16:41 ` [PATCHv6 11/11] [TESTPATCH] rtc: convert ds1307 to interim probe_new Kieran Bingham
2016-11-07 0:07 ` [PATCHv6 00/11] i2c: Relax mandatory I2C ID table passing Wolfram Sang
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