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| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-23 13:48:37 +1000 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-23 13:48:37 +1000 |
| commit | c1e554aeea12d2dab5183e011c27dee6142dc927 (patch) | |
| tree | a44908fa5c2f1f24b6f7e7313b60e49cd3235cdd /arch/sh/kernel/traps.c | |
| parent | c203e45f069af47ca7623e4dcd8c00bfba2722e4 (diff) | |
| parent | 78b58e549a3098a8c1408d0214bd25e5d5e7a3a3 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'arch/sh/kernel/traps.c')
| -rw-r--r-- | arch/sh/kernel/traps.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index a3bdc68ef02c..438f1ebcc453 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -4,6 +4,7 @@ #include <linux/kdebug.h> #include <linux/signal.h> #include <linux/sched.h> +#include <linux/uaccess.h> #include <asm/system.h> #ifdef CONFIG_BUG @@ -21,7 +22,14 @@ static void handle_BUG(struct pt_regs *regs) int is_valid_bugaddr(unsigned long addr) { - return addr >= PAGE_OFFSET; + unsigned short opcode; + + if (addr < PAGE_OFFSET) + return 0; + if (probe_kernel_address((u16 *)addr, opcode)) + return 0; + + return opcode == TRAPA_BUG_OPCODE; } #endif |