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sysvipc: use non-racy method for proc entries creation

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Use proc_create_data() to make sure that ->proc_fops and ->data be setup
before gluing PDE to main tree.

Signed-off-by: Denis V. Lunev <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Nadia Derbey <[email protected]>
Cc: Pierre Peiffer <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Denis V. Lunev 2008-04-29 01:02:12 -07:00 • committed by Linus Torvalds
commit 6a6375db13
1 changed files with 6 additions and 7 deletions
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13
ipc/util.c
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@ -165,13 +165,12 @@ void __init ipc_init_proc_interface(const char *path, const char *header,
iface->ids = ids;
iface->show = show;
pde = create_proc_entry(path,
S_IRUGO, /* world readable */
NULL /* parent dir */);
if (pde) {
pde->data = iface;
pde->proc_fops = &sysvipc_proc_fops;
} else {
pde = proc_create_data(path,
S_IRUGO, /* world readable */
NULL, /* parent dir */
&sysvipc_proc_fops,
iface);
if (!pde) {
kfree(iface);
}
}