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ALSA: ice1712: fix a missing check of snd_i2c_sendbytes 

snd_i2c_sendbytes could fail. The fix checks its return value: if it
fails, issues an error message and returns with its error code.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Aditya Pakki 2019-01-06 10:31:44 -06:00 committed by Takashi Iwai
parent 0f25e000cb
commit c99776cc40
1 changed files with 6 additions and 1 deletions
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7
sound/pci/ice1712/ews.c
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@ -826,7 +826,12 @@ static int snd_ice1712_6fire_read_pca(struct snd_ice1712 *ice, unsigned char reg
snd_i2c_lock(ice->i2c);
byte = reg;
snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1);
if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1)) {
snd_i2c_unlock(ice->i2c);
dev_err(ice->card->dev, "cannot send pca\n");
return -EIO;
}
byte = 0;
if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
snd_i2c_unlock(ice->i2c);