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staging: slicoss: fix 64-bit isr address bug

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This patch fixes a bug that only manifests when the physical address of
the interrupt status register is >4GB. Specifically, the driver was only
telling the device about the lower 32 bits of the ISR. This patch adds
the upper 32 bits.

Signed-off-by: David Matlack <dmatlack@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Matlack 2014-05-05 21:02:36 -07:00 committed by Greg Kroah-Hartman
parent 9bc97445a3
commit 0783c636d1
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/slicoss/slicoss.c
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@ -2814,7 +2814,8 @@ static int slic_card_init(struct sliccard *card, struct adapter *adapter)
spin_lock_irqsave(&adapter->bit64reglock.lock,
adapter->bit64reglock.flags);
slic_reg32_write(&slic_regs->slic_addr_upper, 0, DONT_FLUSH);
slic_reg32_write(&slic_regs->slic_addr_upper,
SLIC_GET_ADDR_HIGH(&pshmem->isr), DONT_FLUSH);
slic_reg32_write(&slic_regs->slic_isp,
SLIC_GET_ADDR_LOW(&pshmem->isr), FLUSH);
spin_unlock_irqrestore(&adapter->bit64reglock.lock,