Commit 0d2f096b authored Nov 16, 2011 by Tony Luck Committed by H. Peter Anvin Nov 16, 2011

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>

parent 78345d2e

drivers/char/random.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}