diff options
| author | Markus Elfring <elfring@users.sourceforge.net> | 2016-08-18 18:12:03 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-08-19 10:58:55 +0200 |
| commit | a6e3918bcdb1253083f962d747ec699bdb4bacd9 (patch) | |
| tree | d0831ef137c59c1e337668e1d996f4b9df4e0122 /drivers/gpu/drm/savage | |
| parent | drm: Allow drivers to modify plane_state in prepare_fb/cleanup_fb (diff) | |
| download | linux-a6e3918bcdb1253083f962d747ec699bdb4bacd9.tar.xz linux-a6e3918bcdb1253083f962d747ec699bdb4bacd9.zip | |
GPU-DRM-Savage: Use memdup_user() rather than duplicating
Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/021efa32-c259-e799-a80e-630972291815@users.sourceforge.net
Diffstat (limited to 'drivers/gpu/drm/savage')
| -rw-r--r-- | drivers/gpu/drm/savage/savage_state.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/gpu/drm/savage/savage_state.c b/drivers/gpu/drm/savage/savage_state.c index c01ad0aeaa58..3dc0d8ff95ec 100644 --- a/drivers/gpu/drm/savage/savage_state.c +++ b/drivers/gpu/drm/savage/savage_state.c @@ -1001,15 +1001,9 @@ int savage_bci_cmdbuf(struct drm_device *dev, void *data, struct drm_file *file_ cmdbuf->cmd_addr = kcmd_addr; } if (cmdbuf->vb_size) { - kvb_addr = kmalloc(cmdbuf->vb_size, GFP_KERNEL); - if (kvb_addr == NULL) { - ret = -ENOMEM; - goto done; - } - - if (copy_from_user(kvb_addr, cmdbuf->vb_addr, - cmdbuf->vb_size)) { - ret = -EFAULT; + kvb_addr = memdup_user(cmdbuf->vb_addr, cmdbuf->vb_size); + if (IS_ERR(kvb_addr)) { + ret = PTR_ERR(kvb_addr); goto done; } cmdbuf->vb_addr = kvb_addr; |