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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2007-04-12 20:02:54 +0900
committerRalf Baechle <ralf@linux-mips.org>2007-04-20 14:58:37 +0100
commitba755f8ec80fdbf2b5212622eabf7355464c6327 (patch)
tree211f9963c94d740a629c0a72fcacdb1761506873 /arch
parentfaea62346444ce5b1dba8fb5291d95b676522c42 (diff)
downloadop-kernel-dev-ba755f8ec80fdbf2b5212622eabf7355464c6327.zip
op-kernel-dev-ba755f8ec80fdbf2b5212622eabf7355464c6327.tar.gz
[MIPS] Fix BUG(), BUG_ON() handling
With commit 63dc68a8cf60cb110b147dab1704d990808b39e2, kernel can not handle BUG() and BUG_ON() properly since get_user() returns false for kernel code. Use __get_user() to skip unnecessary access_ok(). This patch also make BRK_BUG code encoded in the TNE instruction. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/kernel/traps.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 6b356f6..493cb29 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -650,7 +650,7 @@ asmlinkage void do_bp(struct pt_regs *regs)
unsigned int opcode, bcode;
siginfo_t info;
- if (get_user(opcode, (unsigned int __user *) exception_epc(regs)))
+ if (__get_user(opcode, (unsigned int __user *) exception_epc(regs)))
goto out_sigsegv;
/*
@@ -700,7 +700,7 @@ asmlinkage void do_tr(struct pt_regs *regs)
unsigned int opcode, tcode = 0;
siginfo_t info;
- if (get_user(opcode, (unsigned int __user *) exception_epc(regs)))
+ if (__get_user(opcode, (unsigned int __user *) exception_epc(regs)))
goto out_sigsegv;
/* Immediate versions don't provide a code. */
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