V4L/DVB (6564): Move check before lock
Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> CC: Antti Palosaari <crope@iki.fi> CC: Carl Lundqvist <comabug@gmail.com> CC: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -79,12 +79,12 @@ static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
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struct dvb_usb_device *d = i2c_get_adapdata(adap);
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int i;
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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if (num > 2)
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return -EINVAL;
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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for (i = 0; i < num; i++) {
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/* write/read request */
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if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
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@ -56,12 +56,12 @@ static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
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struct dvb_usb_device *d = i2c_get_adapdata(adap);
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int i;
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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if (num > 2)
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return -EINVAL;
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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for (i = 0; i < num; i++) {
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/* write/read request */
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if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
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