uio: remove redundant check (54557665) · Commits · 戴 / test

It is not necessary to check idev->info several times under mutex lock, so just remove redundant check. Signed-off-by:

drivers/uio/uio.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -494,7 +494,7 @@ static int uio_open(struct inode inode, struct file filep)
		goto err_infoopen;
		}

		if (idev->info && idev->info->open)
		if (idev->info->open)
		ret = idev->info->open(idev->info, inode);
		mutex_unlock(&idev->info_lock);
		if (ret)
		@@ -635,7 +635,7 @@ static ssize_t uio_write(struct file filep, const char __user buf,
		goto out;
		}

		if (!idev->info \|\| !idev->info->irq) {
		if (!idev->info->irq) {
		retval = -EIO;
		goto out;
		}