From: Domen Puncer <domen@coderock.org>
Date: Wed, 16 May 2007 06:57:05 +0000 (-0700)
Subject: spi: fix spidev for >sizeof(long)/32 devices
X-Git-Tag: v4.13~38227
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=0a4dd7783dfc62176a29cb349404180f24f46975;p=mirror_ubuntu-bionic-kernel.git

spi: fix spidev for >sizeof(long)/32 devices

find_first_zero_bit accepts number of bits, not longs.

Signed-off-by: Domen Puncer <domen.puncer@telargo.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index c0a6dce800a3..225d6b2f82dd 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -484,7 +484,7 @@ static int spidev_probe(struct spi_device *spi)
 	 * Reusing minors is fine so long as udev or mdev is working.
 	 */
 	mutex_lock(&device_list_lock);
-	minor = find_first_zero_bit(minors, ARRAY_SIZE(minors));
+	minor = find_first_zero_bit(minors, N_SPI_MINORS);
 	if (minor < N_SPI_MINORS) {
 		spidev->dev.parent = &spi->dev;
 		spidev->dev.class = &spidev_class;