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staging: most: usb: use EINVAL error code 

This patch replaces the error code EIO with EINVAL, when there is no IO
happening.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Link: https://lore.kernel.org/r/1588672829-28883-3-git-send-email-christian.gromm@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian Gromm 2020-05-05 12:00:27 +02:00 committed by Greg Kroah-Hartman
parent 3e8621aba7
commit 441be56f89
1 changed files with 5 additions and 5 deletions
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10
drivers/staging/most/usb/usb.c
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@ -274,13 +274,13 @@ static int hdm_add_padding(struct most_dev *mdev, int channel, struct mbo *mbo)
unsigned int j, num_frames;
if (!frame_size)
return -EIO;
return -EINVAL;
num_frames = mbo->buffer_length / frame_size;
if (num_frames < 1) {
dev_err(&mdev->usb_device->dev,
"Missed minimal transfer unit.\n");
return -EIO;
return -EINVAL;
}
for (j = num_frames - 1; j > 0; j--)
@ -308,7 +308,7 @@ static int hdm_remove_padding(struct most_dev *mdev, int channel,
unsigned int j, num_frames;
if (!frame_size)
return -EIO;
return -EINVAL;
num_frames = mbo->processed_length / USB_MTU;
for (j = 1; j < num_frames; j++)
@ -556,7 +556,7 @@ static int hdm_enqueue(struct most_interface *iface, int channel,
void *virt_address;
if (unlikely(!mbo))
return -EIO;
return -EINVAL;
if (unlikely(iface->num_channels <= channel || channel < 0))
return -ECHRNG;
@ -577,7 +577,7 @@ static int hdm_enqueue(struct most_interface *iface, int channel,
if ((conf->direction & MOST_CH_TX) && mdev->padding_active[channel] &&
hdm_add_padding(mdev, channel, mbo)) {
retval = -EIO;
retval = -EINVAL;
goto err_free_urb;
}