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| author | Dmitry Torokhov <dtor@insightbb.com> | 2007-02-10 01:26:32 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-02-10 01:26:32 -0500 |
| commit | b22364c8eec89e6b0c081a237f3b6348df87796f (patch) | |
| tree | 233a923281fb640106465d076997ff511efb6edf /drivers/media/common/saa7146_i2c.c | |
| parent | 2c8dc071517ec2843869024dc82be2e246f41064 (diff) | |
| parent | 66efc5a7e3061c3597ac43a8bb1026488d57e66b (diff) | |
| download | op-kernel-dev-b22364c8eec89e6b0c081a237f3b6348df87796f.zip op-kernel-dev-b22364c8eec89e6b0c081a237f3b6348df87796f.tar.gz | |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/media/common/saa7146_i2c.c')
| -rw-r--r-- | drivers/media/common/saa7146_i2c.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/media/common/saa7146_i2c.c b/drivers/media/common/saa7146_i2c.c index 5297a36..8c85efc 100644 --- a/drivers/media/common/saa7146_i2c.c +++ b/drivers/media/common/saa7146_i2c.c @@ -189,13 +189,21 @@ static int saa7146_i2c_writeout(struct saa7146_dev *dev, u32* dword, int short_d saa7146_write(dev, I2C_TRANSFER, *dword); dev->i2c_op = 1; + SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17); SAA7146_IER_ENABLE(dev, MASK_16|MASK_17); saa7146_write(dev, MC2, (MASK_00 | MASK_16)); - wait_event_interruptible(dev->i2c_wq, dev->i2c_op == 0); - if (signal_pending (current)) { - /* a signal arrived */ - return -ERESTARTSYS; + timeout = HZ/100 + 1; /* 10ms */ + timeout = wait_event_interruptible_timeout(dev->i2c_wq, dev->i2c_op == 0, timeout); + if (timeout == -ERESTARTSYS || dev->i2c_op) { + SAA7146_IER_DISABLE(dev, MASK_16|MASK_17); + SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17); + if (timeout == -ERESTARTSYS) + /* a signal arrived */ + return -ERESTARTSYS; + + printk(KERN_WARNING "saa7146_i2c_writeout: timed out waiting for end of xfer\n"); + return -EIO; } status = saa7146_read(dev, I2C_STATUS); } else { |
