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| author | David Vrabel <david.vrabel@csr.com> | 2008-12-08 16:18:47 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2008-12-08 16:18:47 +0000 |
| commit | c35fa3ea1ae8198bd65c2c6e59d9ebd68c115a59 (patch) | |
| tree | 878768b69df25459b448aa890352342c4a3c6e2d /arch/mn10300/kernel/gdb-io-serial.c | |
| parent | dcc7461eef7341e84e2f7274f904ce01a43b2506 (diff) | |
| parent | 218d11a8b071b23b76c484fd5f72a4fe3306801e (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
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 9a6d4e8ebe73..11584c51acd9 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) { |