rsxx: don't open-code memdup_user() (820351f0) · Commits · 戴 / test

drivers/block/rsxx/core.c

+4 −7

Original line number	Diff line number	Diff line
		@@ -203,14 +203,11 @@ static ssize_t rsxx_cram_write(struct file fp, const char __user ubuf,
		char *buf;
		ssize_t st;

		buf = kzalloc(cnt, GFP_KERNEL);
		if (!buf)
		return -ENOMEM;
		buf = memdup_user(ubuf, cnt);
		if (IS_ERR(buf))
		return PTR_ERR(buf);

		st = copy_from_user(buf, ubuf, cnt);
		if (!st)
		st = rsxx_creg_write(card, CREG_ADD_CRAM + (u32)*ppos, cnt,
		buf, 1);
		st = rsxx_creg_write(card, CREG_ADD_CRAM + (u32)*ppos, cnt, buf, 1);
		kfree(buf);
		if (st)
		return st;