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drm/radeon/kms: add missing copy from user

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This hasn't mattered up until the ioctl started using the value, and it fell
apart.

fixes fd.o 29340, Ubuntu LP 606081

[airlied: cleaned up whitespace and don't need an error before pushing]

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2010-08-02 09:43:52 +10:00 committed by Dave Airlie
parent 96576a9e1a
commit d8ab355750
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/radeon/radeon_kms.c
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@ -112,7 +112,9 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
info = data;
value_ptr = (uint32_t *)((unsigned long)info->value);
value = *value_ptr;
if (DRM_COPY_FROM_USER(&value, value_ptr, sizeof(value)))
return -EFAULT;
switch (info->request) {
case RADEON_INFO_DEVICE_ID:
value = dev->pci_device;