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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-11 18:45:21 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-11 18:45:21 +0100 |
| commit | 254c44ea822066e24ab5efbdff1e43b8fe45ae76 (patch) | |
| tree | 547f6fd4ce1bd6dba6a5cc5184df28501d550795 /arch/powerpc/kernel/ptrace.c | |
| parent | 7b76415375ba91f5a06f8d5179278c03d6151d16 (diff) | |
| parent | 6ac77e469e991e9dd91b28e503fa24b5609eedba (diff) | |
Merge branch 'gic-fasteoi' of git://linux-arm.org/linux-2.6-wd into devel-stable
Diffstat (limited to 'arch/powerpc/kernel/ptrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 55613e33e26..a6ae1cfad86 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -933,12 +933,16 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, if (data && !(data & DABR_TRANSLATION)) return -EIO; #ifdef CONFIG_HAVE_HW_BREAKPOINT + if (ptrace_get_breakpoints(task) < 0) + return -ESRCH; + bp = thread->ptrace_bps[0]; if ((!data) || !(data & (DABR_DATA_WRITE | DABR_DATA_READ))) { if (bp) { unregister_hw_breakpoint(bp); thread->ptrace_bps[0] = NULL; } + ptrace_put_breakpoints(task); return 0; } if (bp) { @@ -948,9 +952,12 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, (DABR_DATA_WRITE | DABR_DATA_READ), &attr.bp_type); ret = modify_user_hw_breakpoint(bp, &attr); - if (ret) + if (ret) { + ptrace_put_breakpoints(task); return ret; + } thread->ptrace_bps[0] = bp; + ptrace_put_breakpoints(task); thread->dabr = data; return 0; } @@ -965,9 +972,12 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, ptrace_triggered, task); if (IS_ERR(bp)) { thread->ptrace_bps[0] = NULL; + ptrace_put_breakpoints(task); return PTR_ERR(bp); } + ptrace_put_breakpoints(task); + #endif /* CONFIG_HAVE_HW_BREAKPOINT */ /* Move contents to the DABR register */ |