diff options
| author | Mars <caoziqiang@meizu.com> | 2012-11-03 12:15:38 +0800 |
|---|---|---|
| committer | Arve Hjønnevåg <arve@android.com> | 2013-07-01 14:16:13 -0700 |
| commit | b87669ca17edadedd224b8a7976ab5d419c9f06b (patch) | |
| tree | 3a1781bd74bc9d32c3848a395d6a608542d2b039 | |
| parent | 03a7e10237e9260411bfcbbd2e2730486e4bcd9e (diff) | |
ARM: fiq_debugger: fix uninitialised spin_lock.
Backtrace:
[<c0045ea0>] (dump_backtrace+0x0/0x10c) from [<c0575c60>] (dump_stack+0x1)
r6:c07a489c r5:c0c9b9dc r4:00000002 r3:271aed3b
[<c0575c48>] (dump_stack+0x0/0x1c) from [<c00b1b00>] (__lock_acquire+0x93)
[<c00b11c8>] (__lock_acquire+0x0/0xad4) from [<c00b219c>] (lock_acquire+0)
[<c00b210c>] (lock_acquire+0x0/0xa4) from [<c057e544>] (_raw_spin_lock_ir)
[<c057e4f8>] (_raw_spin_lock_irq+0x0/0x5c) from [<c005297c>] (fiq_tty_wri)
r5:e30f0000 r4:e36f0c00
[<c005293c>] (fiq_tty_write+0x0/0x80) from [<c023168c>] (n_tty_write+0x18)
r8:e370fc40 r7:e378a000 r6:e3572d1c r5:e36f0c00 r4:00000002
r3:c005293c
[<c0231500>] (n_tty_write+0x0/0x440) from [<c022d4a4>] (tty_write+0x100/0)
[<c022d3a4>] (tty_write+0x0/0x2a8) from [<c0100b80>] (vfs_write+0xa4/0x14)
[<c0100adc>] (vfs_write+0x0/0x148) from [<c0100cdc>] (sys_write+0x40/0x78)
r8:00000002 r7:4076d2c4 r6:e370fc40 r5:00000000 r4:00000000
[<c0100c9c>] (sys_write+0x0/0x78) from [<c0041740>] (ret_fast_syscall+0x0)
r8:c0041908 r7:00000004 r6:00000002 r5:00000000 r4:4007cbe0
[ccross: moved spin_lock_init into existing #ifdef]
Change-Id: If400d084eb20433c126ea1dd027a6be7f2ebb1f6
Signed-off-by: Mars <caoziqiang@meizu.com>
Signed-off-by: Colin Cross <ccross@android.com>
| -rw-r--r-- | arch/arm/common/fiq_debugger.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/common/fiq_debugger.c b/arch/arm/common/fiq_debugger.c index 946a31403ce..053680b6c32 100644 --- a/arch/arm/common/fiq_debugger.c +++ b/arch/arm/common/fiq_debugger.c @@ -1340,6 +1340,7 @@ static int fiq_debugger_probe(struct platform_device *pdev) handle_wakeup(state); #if defined(CONFIG_FIQ_DEBUGGER_CONSOLE) + spin_lock_init(&state->console_lock); state->console = fiq_debugger_console; state->console.index = pdev->id; if (!console_set_on_cmdline) |