Commit 0d2f096b authored by Luck, Tony's avatar Luck, Tony Committed by H. Peter Anvin

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: default avatarTony Luck <tony.luck@intel.com>
Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/4ec4061010261a4cb0@agluck-desktop.sc.intel.comSigned-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent 78345d2e
...@@ -941,7 +941,7 @@ void get_random_bytes(void *buf, int nbytes) ...@@ -941,7 +941,7 @@ void get_random_bytes(void *buf, int nbytes)
if (!arch_get_random_long(&v)) if (!arch_get_random_long(&v))
break; break;
memcpy(buf, &v, chunk); memcpy(p, &v, chunk);
p += chunk; p += chunk;
nbytes -= chunk; nbytes -= chunk;
} }
......
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