luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm: proc: Use minor->index to label things, not PDE->name

Browse Source 
Use minor->index to label things, not the name field from the proc_dir_entry
of the /proc/dwm/<minor>/ directory.

Also, use "%u" not "%d" to render the value and use a 12-byte buffer in which
to render the integer, not a 16-byte buffer.  The longest string an unsigned
int can give you is 10 chars (4294967295) plus a NUL, so round up to 12 as the
stack is likely to be 4- or 8-byte aligned.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: dri-devel@lists.freedesktop.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
David Howells 2013-04-12 15:34:31 +01:00 committed by Al Viro
parent ce089b5472
commit b63e6aa502
3 changed files with 7 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/drm_proc.c
View File

@ -116,14 +116,13 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count,
ent = proc_create_data(files[i].name, S_IRUGO, root,
&drm_proc_fops, tmp);
if (!ent) {
DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
root->name, files[i].name);
DRM_ERROR("Cannot create /proc/dri/%u/%s\n",
minor->index, files[i].name);
list_del(&tmp->list);
kfree(tmp);
ret = -1;
goto fail;
}
}
return 0;
@ -137,7 +136,6 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count,
* Initialize the DRI proc filesystem for a device
*
* \param dev DRM device
* \param minor device minor number
* \param root DRI proc dir entry.
* \param dev_root resulting DRI device proc dir entry.
* \return root entry pointer on success, or NULL on failure.
@ -146,14 +144,13 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count,
* "/proc/dri/%minor%/", and each entry in proc_list as
* "/proc/dri/%minor%/%name%".
*/
int drm_proc_init(struct drm_minor *minor, int minor_id,
struct proc_dir_entry *root)
int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root)
{
char name[64];
char name[12];
int ret;
INIT_LIST_HEAD(&minor->proc_nodes.list);
sprintf(name, "%d", minor_id);
sprintf(name, "%u", minor->index);
minor->proc_root = proc_mkdir(name, root);
if (!minor->proc_root) {
DRM_ERROR("Cannot create /proc/dri/%s\n", name);

2
drivers/gpu/drm/drm_stub.c
View File

@ -352,7 +352,7 @@ int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type)
idr_replace(&drm_minors_idr, new_minor, minor_id);
if (type == DRM_MINOR_LEGACY) {
ret = drm_proc_init(new_minor, minor_id, drm_proc_root);
ret = drm_proc_init(new_minor, drm_proc_root);
if (ret) {
DRM_ERROR("DRM: Failed to initialize /proc/dri.\n");
goto err_mem;

3
include/drm/drmP.h
View File

@ -1546,8 +1546,7 @@ extern struct idr drm_minors_idr;
extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
/* Proc support (drm_proc.h) */
extern int drm_proc_init(struct drm_minor *minor, int minor_id,
struct proc_dir_entry *root);
extern int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root);
extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
/* Debugfs support */