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| author | Augusto Mecking Caringi <augustocaringi@gmail.com> | 2017-01-10 13:45:00 +0300 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2017-01-26 19:40:42 +0300 |
| commit | 955f82ec9a0a251ed1ebe16ce0efd564337ce439 (patch) | |
| tree | 6776f7cf3e1fed4fd43800e0d75d4bf77192142c /drivers | |
| parent | be9ab8202e194fbc6b066b7e2dbabccd9d74a362 (diff) | |
| download | linux-955f82ec9a0a251ed1ebe16ce0efd564337ce439.tar.xz | |
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: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/vme/bridges/vme_ca91cx42.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c index 1abbf80ffb19..9733b8a7fea7 100644 --- a/drivers/vme/bridges/vme_ca91cx42.c +++ b/drivers/vme/bridges/vme_ca91cx42.c @@ -468,7 +468,7 @@ static int ca91cx42_slave_get(struct vme_slave_resource *image, int *enabled, vme_bound = ioread32(bridge->base + CA91CX42_VSI_BD[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); *enabled = 0; |