On Tue, 12 Jan 2010 15:27:40 +0100, Wolfram Sang wrote:
> Unexpected signals can disturb the bus-handling and lock it up. Don't use
> interruptible in 'wait_event_*' and 'wake_*' as in commits
> dc1972d02747d2170fb1d78d114801f5ecb27506 (for cpm),
> 1ab082d7cbd0f34e39a5396cc6340c00bc5d66ef (for mpc),
> b7af349b175af45f9d87b3bf3f0a221e1831ed39 (for omap).
> 
> Signed-off-by: Wolfram Sang <[email protected]>
> Cc: Jean Delvare <[email protected]>
> ---
> 
> Tested with custom hardware.
> 
>  drivers/i2c/busses/i2c-pca-isa.c      |    4 ++--
>  drivers/i2c/busses/i2c-pca-platform.c |    4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-pca-isa.c 
> b/drivers/i2c/busses/i2c-pca-isa.c
> index 0ed68e2..f7346a9 100644
> --- a/drivers/i2c/busses/i2c-pca-isa.c
> +++ b/drivers/i2c/busses/i2c-pca-isa.c
> @@ -75,7 +75,7 @@ static int pca_isa_waitforcompletion(void *pd)
>       unsigned long timeout;
>  
>       if (irq > -1) {
> -             ret = wait_event_interruptible_timeout(pca_wait,
> +             ret = wait_event_timeout(pca_wait,
>                               pca_isa_readbyte(pd, I2C_PCA_CON)
>                               & I2C_PCA_CON_SI, pca_isa_ops.timeout);
>       } else {
> @@ -96,7 +96,7 @@ static void pca_isa_resetchip(void *pd)
>  }
>  
>  static irqreturn_t pca_handler(int this_irq, void *dev_id) {
> -     wake_up_interruptible(&pca_wait);
> +     wake_up(&pca_wait);
>       return IRQ_HANDLED;
>  }
>  
> diff --git a/drivers/i2c/busses/i2c-pca-platform.c 
> b/drivers/i2c/busses/i2c-pca-platform.c
> index c4df9d4..5b2213d 100644
> --- a/drivers/i2c/busses/i2c-pca-platform.c
> +++ b/drivers/i2c/busses/i2c-pca-platform.c
> @@ -84,7 +84,7 @@ static int i2c_pca_pf_waitforcompletion(void *pd)
>       unsigned long timeout;
>  
>       if (i2c->irq) {
> -             ret = wait_event_interruptible_timeout(i2c->wait,
> +             ret = wait_event_timeout(i2c->wait,
>                       i2c->algo_data.read_byte(i2c, I2C_PCA_CON)
>                       & I2C_PCA_CON_SI, i2c->adap.timeout);
>       } else {
> @@ -122,7 +122,7 @@ static irqreturn_t i2c_pca_pf_handler(int this_irq, void 
> *dev_id)
>       if ((i2c->algo_data.read_byte(i2c, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
>               return IRQ_NONE;
>  
> -     wake_up_interruptible(&i2c->wait);
> +     wake_up(&i2c->wait);
>  
>       return IRQ_HANDLED;
>  }

Applied, thanks.

-- 
Jean Delvare
--
To unsubscribe from this list: send the line "unsubscribe linux-i2c" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to