diff options
| author | Luck, Tony <tony.luck@intel.com> | 2011-11-16 19:50:56 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-11-17 01:41:02 +0100 |
| commit | 0d2f096b8785b67c38afcf6e1fbb9674af2e05ca (patch) | |
| tree | ccd9354a7b3d9752928c2b82979b89e28f417af8 /drivers/char/random.c | |
| parent | x86: Call stop_machine_text_poke() on all CPUs (diff) | |
| download | linux-0d2f096b8785b67c38afcf6e1fbb9674af2e05ca.tar.xz linux-0d2f096b8785b67c38afcf6e1fbb9674af2e05ca.zip | |
random: Fix handing of arch_get_random_long in get_random_bytes()
If there is an architecture-specific random number generator we use
it to acquire randomness one "long" at a time. We should put these
random words into consecutive words in the result buffer - not just
overwrite the first word again and again.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/4ec4061010261a4cb0@agluck-desktop.sc.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/char/random.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 63e19ba56bbe..6035ab8d5ef7 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -941,7 +941,7 @@ void get_random_bytes(void *buf, int nbytes) if (!arch_get_random_long(&v)) break; - memcpy(buf, &v, chunk); + memcpy(p, &v, chunk); p += chunk; nbytes -= chunk; } |