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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-26 09:21:05 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-26 09:21:05 +0100 |
| commit | c656d9ca48d3ef1a11449e892ce488ee0bb5a335 (patch) | |
| tree | 0c5598659b3e7f12864d203967d42ac3feb1142c /arch/mn10300/kernel/gdb-io-serial.c | |
| parent | 71ab6b245fda6e7597a667a67cce0d26c3c7a14b (diff) | |
| parent | a73ad3331fdbf4191cf99b83ea9ac7082b6757ba (diff) | |
Merge branch 'x86/fpu' into x86/cleanups
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 9a6d4e8ebe739..11584c51acd93 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) { |