Merge tag 'staging-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are three small staging driver fixes for 6.15-rc6. These are:

   - bcm2835-camera driver fix

   - two axis-fifo driver fixes

  All of these have been in linux-next for a few weeks with no reported
  issues"

* tag 'staging-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: axis-fifo: Remove hardware resets for user errors
  staging: axis-fifo: Correct handling of tx_fifo_depth for size validation
  staging: bcm2835-camera: Initialise dev in v4l2_dev
This commit is contained in:
Linus Torvalds committed 2025-05-10 09:08:19 -07:00
commit 067dd5875d
2 files changed
+4 -11

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+3 -11
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@@ -393,16 +393,14 @@ static ssize_t axis_fifo_read(struct file *f, char __user *buf,
bytes_available = ioread32(fifo->base_addr + XLLF_RLR_OFFSET);
if (!bytes_available) {
dev_err(fifo->dt_device, "received a packet of length 0 - fifo core will be reset\n");
reset_ip_core(fifo);
dev_err(fifo->dt_device, "received a packet of length 0\n");
ret = -EIO;
goto end_unlock;
}
if (bytes_available > len) {
dev_err(fifo->dt_device, "user read buffer too small (available bytes=%zu user buffer bytes=%zu) - fifo core will be reset\n",
dev_err(fifo->dt_device, "user read buffer too small (available bytes=%zu user buffer bytes=%zu)\n",
bytes_available, len);
reset_ip_core(fifo);
ret = -EINVAL;
goto end_unlock;
}
@@ -411,8 +409,7 @@ static ssize_t axis_fifo_read(struct file *f, char __user *buf,
/* this probably can't happen unless IP
* registers were previously mishandled
*/
dev_err(fifo->dt_device, "received a packet that isn't word-aligned - fifo core will be reset\n");
reset_ip_core(fifo);
dev_err(fifo->dt_device, "received a packet that isn't word-aligned\n");
ret = -EIO;
goto end_unlock;
}
@@ -433,7 +430,6 @@ static ssize_t axis_fifo_read(struct file *f, char __user *buf,
if (copy_to_user(buf + copied * sizeof(u32), tmp_buf,
copy * sizeof(u32))) {
reset_ip_core(fifo);
ret = -EFAULT;
goto end_unlock;
}
@@ -542,7 +538,6 @@ static ssize_t axis_fifo_write(struct file *f, const char __user *buf,
if (copy_from_user(tmp_buf, buf + copied * sizeof(u32),
copy * sizeof(u32))) {
reset_ip_core(fifo);
ret = -EFAULT;
goto end_unlock;
}
@@ -775,9 +770,6 @@ static int axis_fifo_parse_dt(struct axis_fifo *fifo)
goto end;
}
/* IP sets TDFV to fifo depth - 4 so we will do the same */
fifo->tx_fifo_depth -= 4;
ret = get_dts_property(fifo, "xlnx,use-rx-data", &fifo->has_rx_fifo);
if (ret) {
dev_err(fifo->dt_device, "missing xlnx,use-rx-data property\n");
@@ -1900,6 +1900,7 @@ static int bcm2835_mmal_probe(struct vchiq_device *device)
__func__, ret);
goto free_dev;
}
dev->v4l2_dev.dev = &device->dev;
/* setup v4l controls */
ret = bcm2835_mmal_init_controls(dev, &dev->ctrl_handler);