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i2c/pca: Don't use *_interruptible 

Unexpected signals can disturb the bus-handling and lock it up. Don't use
interruptible in 'wait_event_*' and 'wake_*' as in commits
dc1972d027 (for cpm),
1ab082d7cb (for mpc),
b7af349b17 (for omap).

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Wolfram Sang 2010-01-16 20:43:13 +01:00 committed by Jean Delvare
parent 7d53e79f9e
commit 22f8b2695e
2 changed files with 4 additions and 4 deletions
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4
drivers/i2c/busses/i2c-pca-isa.c
View File

@ -75,7 +75,7 @@ static int pca_isa_waitforcompletion(void *pd)
unsigned long timeout; unsigned long timeout;
if (irq > -1) { if (irq > -1) {
ret = wait_event_interruptible_timeout(pca_wait, ret = wait_event_timeout(pca_wait,
pca_isa_readbyte(pd, I2C_PCA_CON) pca_isa_readbyte(pd, I2C_PCA_CON)
& I2C_PCA_CON_SI, pca_isa_ops.timeout); & I2C_PCA_CON_SI, pca_isa_ops.timeout);
} else { } else {
@ -96,7 +96,7 @@ static void pca_isa_resetchip(void *pd)
} }
static irqreturn_t pca_handler(int this_irq, void *dev_id) { static irqreturn_t pca_handler(int this_irq, void *dev_id) {
wake_up_interruptible(&pca_wait); wake_up(&pca_wait);
return IRQ_HANDLED; return IRQ_HANDLED;
} }

4
drivers/i2c/busses/i2c-pca-platform.c
View File

@ -84,7 +84,7 @@ static int i2c_pca_pf_waitforcompletion(void *pd)
unsigned long timeout; unsigned long timeout;
if (i2c->irq) { 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->algo_data.read_byte(i2c, I2C_PCA_CON)
& I2C_PCA_CON_SI, i2c->adap.timeout); & I2C_PCA_CON_SI, i2c->adap.timeout);
} else { } 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) if ((i2c->algo_data.read_byte(i2c, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
return IRQ_NONE; return IRQ_NONE;
wake_up_interruptible(&i2c->wait); wake_up(&i2c->wait);
return IRQ_HANDLED; return IRQ_HANDLED;
} }