From 241fd9bcbc10c144531e88b5e3a62bc11090e5e4 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Fri, 19 Apr 2013 18:03:02 +0200 Subject: [PATCH] s390/zcore: Fix HSA copy length for last block Currently always one page is copied to a user buffer for the last HSA block in memcpy_hsa(). Now the correct length is used. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- drivers/s390/char/zcore.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index 1d61a01576d2..22820610022c 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -127,7 +127,7 @@ static int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode) } if (mode == TO_USER) { if (copy_to_user((__force __user void*) dest + offs, buf, - PAGE_SIZE)) + count - offs)) return -EFAULT; } else memcpy(dest + offs, buf, count - offs); -- 2.20.1