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| author | Clark Williams <williams@redhat.com> | 2012-04-15 23:24:46 -0500 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2012-04-15 23:24:46 -0500 |
| commit | 8e9c931b8e4150f3c5aaab7e4639cd507c30477c (patch) | |
| tree | 4c77bef833db938a950c60095f628acc1ebff50a /drivers/char/random.c | |
| parent | 3524a83e5459ae4ba42f9bf098bb736b99b88695 (diff) | |
| parent | e816b57a337ea3b755de72bec38c10c864f23015 (diff) | |
Merge commit 'v3.4-rc3' into rt-3.4-rc3-rt4v3.4-rc3-rt4
Diffstat (limited to 'drivers/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 021b070f5e89..85b9419b1630 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1261,10 +1261,15 @@ static int proc_do_uuid(ctl_table *table, int write, uuid = table->data; if (!uuid) { uuid = tmp_uuid; - uuid[8] = 0; - } - if (uuid[8] == 0) generate_random_uuid(uuid); + } else { + static DEFINE_SPINLOCK(bootid_spinlock); + + spin_lock(&bootid_spinlock); + if (!uuid[8]) + generate_random_uuid(uuid); + spin_unlock(&bootid_spinlock); + } sprintf(buf, "%pU", uuid); |