Commit 23913c7f authored by Augusto Mecking Caringi's avatar Augusto Mecking Caringi Committed by Willy Tarreau

vme: Fix wrong pointer utilization in ca91cx42_slave_get

commit c8a6a09c 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: default avatarAugusto Mecking Caringi <augustocaringi@gmail.com>
Acked-By: default avatarMartyn Welch <martyn@welchs.me.uk>
Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
parent f8ddf967
...@@ -464,7 +464,7 @@ static int ca91cx42_slave_get(struct vme_slave_resource *image, int *enabled, ...@@ -464,7 +464,7 @@ static int ca91cx42_slave_get(struct vme_slave_resource *image, int *enabled,
vme_bound = ioread32(bridge->base + CA91CX42_VSI_BD[i]); vme_bound = ioread32(bridge->base + CA91CX42_VSI_BD[i]);
pci_offset = ioread32(bridge->base + CA91CX42_VSI_TO[i]); pci_offset = ioread32(bridge->base + CA91CX42_VSI_TO[i]);
*pci_base = (dma_addr_t)vme_base + pci_offset; *pci_base = (dma_addr_t)*vme_base + pci_offset;
*size = (unsigned long long)((vme_bound - *vme_base) + granularity); *size = (unsigned long long)((vme_bound - *vme_base) + granularity);
*enabled = 0; *enabled = 0;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment