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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-16 22:53:53 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-16 22:53:53 +0100 |
| commit | c15cb37cc4e9809624411333b96109ddf770e29c (patch) | |
| tree | 3d4dbb48d97d5df9096ad815b99b20660cdc1bbf /arch/mn10300/kernel/gdb-io-serial.c | |
| parent | 77be80e437fec44f8b7a620314b7d7b605b8d93b (diff) | |
| parent | 8b1fae4e4200388b64dd88065639413cb3f1051c (diff) | |
Merge commit 'v2.6.28-rc8' into x86/uv
Diffstat (limited to 'arch/mn10300/kernel/gdb-io-serial.c')
| -rw-r--r-- | arch/mn10300/kernel/gdb-io-serial.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c index 9a6d4e8ebe7..11584c51acd 100644 --- a/arch/mn10300/kernel/gdb-io-serial.c +++ b/arch/mn10300/kernel/gdb-io-serial.c @@ -99,6 +99,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock) try_again: /* pull chars out of the buffer */ ix = gdbstub_rx_outp; + barrier(); if (ix == gdbstub_rx_inp) { if (nonblock) return -EAGAIN; @@ -110,6 +111,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock) ch = gdbstub_rx_buffer[ix++]; st = gdbstub_rx_buffer[ix++]; + barrier(); gdbstub_rx_outp = ix & 0x00000fff; if (st & UART_LSR_BI) { |