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-rw-r--r--drivers/s390/char/zcore.c2
1 files changed, 1 insertions, 1 deletions
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);