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Subject[mm patch] drm, minor fixes
On Sun, Aug 13, 2006 at 01:24:54AM -0700, Andrew Morton wrote:
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm1/
>
Hi Andrew,

The following patch adds minor fixes to the drm code:
- fix return values that are wrong (return E* instead of return -E*)
- replaces an argument to a sizeof in drm_setversion to match the actual
variable name
- handle drm_set_busid() return value in drm_setversion

Regards,
Frederik

Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c
index d932f80..f9615b5 100644
--- a/drivers/char/drm/i915_dma.c
+++ b/drivers/char/drm/i915_dma.c
@@ -391,7 +391,7 @@ static int i915_emit_box(drm_device_t *
RING_LOCALS;

if (DRM_COPY_FROM_USER_UNCHECKED(&box, &boxes[i], sizeof(box))) {
- return EFAULT;
+ return DRM_ERR(EFAULT);
}

if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) {
diff --git a/drivers/char/drm/drm_ioctl.c b/drivers/char/drm/drm_ioctl.c
index e158998..a93832f 100644
--- a/drivers/char/drm/drm_ioctl.c
+++ b/drivers/char/drm/drm_ioctl.c
@@ -141,12 +141,12 @@ static int drm_set_busid(drm_device_t *
int len;

if (dev->unique != NULL)
- return EBUSY;
+ return -EBUSY;

dev->unique_len = 40;
dev->unique = drm_alloc(dev->unique_len + 1, DRM_MEM_DRIVER);
if (dev->unique == NULL)
- return ENOMEM;
+ return -ENOMEM;

len = snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%d",
drm_get_pci_domain(dev), dev->pdev->bus->number,
@@ -160,7 +160,7 @@ static int drm_set_busid(drm_device_t *
drm_alloc(strlen(dev->driver->pci_driver.name) + dev->unique_len +
2, DRM_MEM_DRIVER);
if (dev->devname == NULL)
- return ENOMEM;
+ return -ENOMEM;

sprintf(dev->devname, "%s@%s", dev->driver->pci_driver.name,
dev->unique);
@@ -342,20 +342,22 @@ int drm_setversion(DRM_IOCTL_ARGS)
retv.drm_dd_major = dev->driver->major;
retv.drm_dd_minor = dev->driver->minor;

- if (copy_to_user(argp, &retv, sizeof(sv)))
+ if (copy_to_user(argp, &retv, sizeof(retv)))
return -EFAULT;

if (sv.drm_di_major != -1) {
if (sv.drm_di_major != DRM_IF_MAJOR ||
sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR)
- return EINVAL;
+ return -EINVAL;
if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_di_minor);
dev->if_version = max(if_version, dev->if_version);
if (sv.drm_di_minor >= 1) {
/*
* Version 1.1 includes tying of DRM to specific device
*/
- drm_set_busid(dev);
+ int ret = drm_set_busid(dev);
+ if (ret)
+ return ret;
}
}

@@ -363,7 +365,7 @@ int drm_setversion(DRM_IOCTL_ARGS)
if (sv.drm_dd_major != dev->driver->major ||
sv.drm_dd_minor < 0
|| sv.drm_dd_minor > dev->driver->minor)
- return EINVAL;
+ return -EINVAL;

if (dev->driver->set_version)
dev->driver->set_version(dev, &sv);
-
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