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Upgrade to 4.4.50-rt62
[kvmfornfv.git]
/
kernel
/
drivers
/
media
/
usb
/
em28xx
/
em28xx-i2c.c
diff --git
a/kernel/drivers/media/usb/em28xx/em28xx-i2c.c
b/kernel/drivers/media/usb/em28xx/em28xx-i2c.c
index
a19b5c8
..
1a9e1e5
100644
(file)
--- a/
kernel/drivers/media/usb/em28xx/em28xx-i2c.c
+++ b/
kernel/drivers/media/usb/em28xx/em28xx-i2c.c
@@
-507,9
+507,8
@@
static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap,
if (dev->disconnected)
return -ENODEV;
- rc = rt_mutex_trylock(&dev->i2c_bus_lock);
- if (rc < 0)
- return rc;
+ if (!rt_mutex_trylock(&dev->i2c_bus_lock))
+ return -EAGAIN;
/* Switch I2C bus if needed */
if (bus != dev->cur_i2c_bus &&