From: Simon Wood <simon@mungewell.org>
To: linux-input@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Jiri Kosina <jkosina@suse.cz>,
Simon Wood <simon@mungewell.org>
Subject: [PATCHv2] HID:hid-logitech: Prevent possibility of infinite loop when using /sys interface
Date: Thu, 14 Aug 2014 20:43:01 -0600 [thread overview]
Message-ID: <1408070581-2460-1-git-send-email-simon@mungewell.org> (raw)
In-Reply-To: <alpine.LNX.2.00.1408121630000.15220@pobox.suse.cz>
If the device data is not accessible for some reason, returning 0 will cause the call to be
continuously called again as none of the string has been 'consumed'.
Signed-off-by: Simon Wood <simon@mungewell.org>
---
drivers/hid/hid-lg4ff.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index cc2bd20..7835717 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -451,13 +451,13 @@ static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *at
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
- return 0;
+ return -EINVAL;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
- return 0;
+ return -EINVAL;
}
if (range == 0)
--
1.9.1
next prev parent reply other threads:[~2014-08-15 2:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-07 2:52 [PATCH] HID:hid-logitech: Prevent possibility of infinite loop when using /sys interface Simon Wood
2014-08-12 14:30 ` Jiri Kosina
2014-08-15 2:43 ` Simon Wood [this message]
2014-08-15 8:56 ` [PATCHv2] " Jiri Kosina
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