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CRIS v10: Fix bug where error returns didn't restore irqs in mm/fault.c 

Don't return when we're inside local_irq_disable(), use goto exit instead.
Also, cleanup some whitespace errors.
hifive-unleashed-5.1
Jesper Nilsson 2008-01-21 11:14:59 +01:00
parent 5712e4dfc6
commit 40316c1fad
1 changed files with 7 additions and 6 deletions
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13
arch/cris/arch-v10/mm/fault.c
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@ -4,10 +4,10 @@
* Low level bus fault handler
*
*
* Copyright (C) 2000, 2001 Axis Communications AB
* Copyright (C) 2000-2007 Axis Communications AB
*
* Authors: Bjorn Wesen
*
* Authors: Bjorn Wesen
*
*/
#include <linux/mm.h>
@ -60,7 +60,7 @@ handle_mmu_bus_fault(struct pt_regs *regs)
#ifdef DEBUG
page_id = IO_EXTRACT(R_MMU_CAUSE, page_id, cause);
acc = IO_EXTRACT(R_MMU_CAUSE, acc_excp, cause);
inv = IO_EXTRACT(R_MMU_CAUSE, inv_excp, cause);
inv = IO_EXTRACT(R_MMU_CAUSE, inv_excp, cause);
index = IO_EXTRACT(R_TLB_SELECT, index, select);
#endif
miss = IO_EXTRACT(R_MMU_CAUSE, miss_excp, cause);
@ -84,12 +84,13 @@ handle_mmu_bus_fault(struct pt_regs *regs)
local_irq_disable();
pmd = (pmd_t *)(pgd + pgd_index(address));
if (pmd_none(*pmd))
return;
goto exit;
pte = *pte_offset_kernel(pmd, address);
if (!pte_present(pte))
return;
goto exit;
*R_TLB_SELECT = select;
*R_TLB_HI = cause;
*R_TLB_LO = pte_val(pte);
exit:
local_irq_restore(flags);
}