diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-12-23 16:23:23 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 16:23:23 +0100 |
| commit | 1ccedb7cdba6886939dd8b4c8f965a826f696e56 (patch) | |
| tree | 0f5fc519a68faca5318c296315c9b6c502907056 /arch/mn10300/kernel/gdb-io-serial.c | |
| parent | a98f8fd24fb24fcb9a359553e64dd6aac5cf4279 (diff) | |
| parent | 929096fe9ff1f4b3645cf3919527ab47e8d5e17c (diff) | |
Merge commit 'v2.6.28-rc9' into x86/apic
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) { |