From: Luck, Tony Date: Wed, 16 Nov 2011 18:50:56 +0000 (-0800) Subject: random: Fix handing of arch_get_random_long in get_random_bytes() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0d2f096b8785b67c38afcf6e1fbb9674af2e05ca;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 Acked-by: Thomas Gleixner Link: http://lkml.kernel.org/r/4ec4061010261a4cb0@agluck-desktop.sc.intel.com Signed-off-by: H. Peter Anvin --- 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; }