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-rw-r--r--kernel/printk/printk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index f7a55e9ff2f7..f6bda15396df 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -748,7 +748,7 @@ static ssize_t devkmsg_write(struct kiocb *iocb, struct iov_iter *from)
return -ENOMEM;
buf[len] = '\0';
- if (copy_from_iter(buf, len, from) != len) {
+ if (!copy_from_iter_full(buf, len, from)) {
kfree(buf);
return -EFAULT;
}