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| author | Augusto Mecking Caringi <augustocaringi@gmail.com> | 2017-01-10 10:45:00 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-11 10:42:16 +0100 |
| commit | c8a6a09c1c617402cc9254b2bc8da359a0347d75 (patch) | |
| tree | ee10c18b55dc4278175392f26221f7b30db093aa /drivers/vme | |
| parent | 546cf3ef9c92b76ff0037c871b939e63caea98b3 (diff) | |
| download | linux-c8a6a09c1c617402cc9254b2bc8da359a0347d75.tar.gz linux-c8a6a09c1c617402cc9254b2bc8da359a0347d75.tar.bz2 linux-c8a6a09c1c617402cc9254b2bc8da359a0347d75.zip | |
vme: Fix wrong pointer utilization in ca91cx42_slave_get
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>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vme')
| -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 6b5ee896af63..7cc51223db1c 100644 --- a/drivers/vme/bridges/vme_ca91cx42.c +++ b/drivers/vme/bridges/vme_ca91cx42.c @@ -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]); 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; |