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| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2021-06-22 22:02:02 +0300 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2021-06-22 21:33:24 +0200 |
| commit | 0f7c956533680d5c905d256044d7b23f180dc230 (patch) | |
| tree | ea3433099990b84ef20e909b9f8ef44bf02993a8 | |
| parent | ALSA: hda: Add IRQ check for platform_get_irq() (diff) | |
| download | linux-dev-0f7c956533680d5c905d256044d7b23f180dc230.tar.xz linux-dev-0f7c956533680d5c905d256044d7b23f180dc230.zip | |
ALSA: hdsp: fix a test for copy_to_user() failure
The copy_to_user() function returns the number of bytes remaining to be
copied. It doesn't return negatives.
Fixes: 66c8f75919dd ("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>
| -rw-r--r-- | sound/pci/rme9652/hdsp.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c index e3e4fabf4abf..8457a4bbc3df 100644 --- a/sound/pci/rme9652/hdsp.c +++ b/sound/pci/rme9652/hdsp.c @@ -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: { |