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ALSA: hdsp: fix a test for copy_to_user() failure

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The copy_to_user() function returns the number of bytes remaining to be
copied.  It doesn't return negatives.

Fixes: 66c8f75919 ("ALSA: hdsp: Fix assignment in if condition")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YNIzqpVR6L2t/RwJ@mwanda
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Dan Carpenter 2021-06-22 22:02:02 +03:00 committed by Takashi Iwai
parent 8c13212443
commit 0f7c956533
1 changed files with 2 additions and 3 deletions
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5
sound/pci/rme9652/hdsp.c
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@ -4877,9 +4877,8 @@ static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigne
memset(&hdsp_version, 0, sizeof(hdsp_version));
hdsp_version.io_type = hdsp->io_type;
hdsp_version.firmware_rev = hdsp->firmware_rev;
err = copy_to_user(argp, &hdsp_version, sizeof(hdsp_version));
if (err < 0)
return -EFAULT;
if (copy_to_user(argp, &hdsp_version, sizeof(hdsp_version)))
return -EFAULT;
break;
}
case SNDRV_HDSP_IOCTL_UPLOAD_FIRMWARE: {