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Commit 615c40dd authored by Dmitry Kalinkin's avatar Dmitry Kalinkin Committed by Greg Kroah-Hartman
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staging: vme_user: refactor llseek to switch(){} 



This makes vme_user_llseek ignore all minors that don't have llseek
implementation.

Signed-off-by: default avatarDmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 75c66b6d

drivers/staging/vme/devices/vme_user.c

+10 −8
Original line number Diff line number Diff line
@@ -430,17 +430,19 @@ static loff_t vme_user_llseek(struct file *file, loff_t off, int whence) 
	size_t image_size;

	loff_t res;



	if (minor == CONTROL_MINOR)

		return -EINVAL;



	switch (type[minor]) {

	case MASTER_MINOR:

	case SLAVE_MINOR:

		mutex_lock(&image[minor].mutex);

		image_size = vme_get_size(image[minor].resource);

		res = fixed_size_llseek(file, off, whence, image_size);

		mutex_unlock(&image[minor].mutex);



		return res;

	}



	return -EINVAL;

}



/*

 * The ioctls provided by the old VME access method (the one at vmelinux.org)

 * are most certainly wrong as the effectively push the registers layout