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authorHeiko Stübner <heiko@sntech.de>2012-02-01 09:12:23 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-02-01 09:12:54 -0800
commit42f578741bc59dc871bef03ff0f72dd197388409 (patch)
tree23383d1b35459bfd26bfd3d8815b80255ed36fc9 /drivers/input/evdev.c
parent52965cc012f7a3cf35f06485ec275ebf3b3fddae (diff)
Input: evdev - fix variable initialisation
Commit 509f87c5f564 (evdev - do not block waiting for an event if fd is nonblock) created a code path were it was possible to use retval uninitialized. This could lead to the xorg evdev input driver getting corrupt data and refusing to work with log messages like AUO-Pixcir touchscreen: Read error: Success sg060_keys: Read error: Success AUO-Pixcir touchscreen: Read error: Success sg060_keys: Read error: Success (for drivers auo-pixcir-ts and gpio-keys). Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Dima Zavin <dima@android.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/evdev.c')
-rw-r--r--drivers/input/evdev.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 76457d50bc3..afc166fcc3d 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -386,7 +386,7 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
struct evdev_client *client = file->private_data;
struct evdev *evdev = client->evdev;
struct input_event event;
- int retval;
+ int retval = 0;
if (count < input_event_size())
return -EINVAL;