From: Augusto Mecking Caringi <augustocaringi@gmail.com>
Date: Tue, 10 Jan 2017 10:45:00 +0000 (+0000)
Subject: vme: Fix wrong pointer utilization in ca91cx42_slave_get
X-Git-Tag: v3.2.87~96
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8fe8b955047d49e82b82ddd3da52247b57c8404f;p=pandora-kernel.git

vme: Fix wrong pointer utilization in ca91cx42_slave_get

commit c8a6a09c1c617402cc9254b2bc8da359a0347d75 upstream.

In ca91cx42_slave_get function, the value pointed by vme_base pointer is
set through:

*vme_base = ioread32(bridge->base + CA91CX42_VSI_BS[i]);

So it must be dereferenced to be used in calculation of pci_base:

*pci_base = (dma_addr_t)*vme_base + pci_offset;

This bug was caught thanks to the following gcc warning:

drivers/vme/bridges/vme_ca91cx42.c: In function ‘ca91cx42_slave_get’:
drivers/vme/bridges/vme_ca91cx42.c:467:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
*pci_base = (dma_addr_t)vme_base + pci_offset;

Signed-off-by: Augusto Mecking Caringi <augustocaringi@gmail.com>
Acked-By: Martyn Welch <martyn@welchs.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

Reading git-diff-tree failed