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Fix the mtx_sleep() error checking, catch all errors and not only

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EWOULDBLOCK.

Do not print any message at errors.  The errors are properly sent to upper
layers which should be able to deal with it, including printing the errors
when they need to.

The error message was quite annoying while scanning the i2c bus.

MFC after:	1 week
This commit is contained in:
Luiz Otavio O Souza 2014-10-20 18:04:20 +00:00
parent 4fce16e4c9
commit 71b37cb9ae
1 changed files with 3 additions and 4 deletions
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7
sys/arm/broadcom/bcm2835/bcm2835_bsc.c
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@ -441,12 +441,11 @@ bcm_bsc_transfer(device_t dev, struct iic_msg *msgs, uint32_t nmsgs)
/* Wait for the transaction to complete. */
err = mtx_sleep(dev, &sc->sc_mtx, 0, "bsciow", hz);
/* Check if we have a timeout or an I2C error. */
if ((sc->sc_flags & BCM_I2C_ERROR) || err == EWOULDBLOCK) {
device_printf(sc->sc_dev, "I2C error\n");
/* Check for errors. */
if (err != 0 && (sc->sc_flags & BCM_I2C_ERROR))
err = EIO;
if (err != 0)
break;
}
}
/* Clean the controller flags. */