diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-11-29 13:51:07 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-11-29 13:51:07 +0400 |
| commit | 0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4 (patch) | |
| tree | d2ca69347816c27f9dc352581f5d0fe76811cd49 /drivers/tty/hvc/hvc_dcc.c | |
| parent | 3d95fd6ad8d3cf582a70ed65660017114b6e4065 (diff) | |
| parent | caca6a03d365883564885f2c1da3e88dcf65d139 (diff) | |
| download | linux-0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4.tar.xz | |
Merge commit 'v3.2-rc3' into next
Diffstat (limited to 'drivers/tty/hvc/hvc_dcc.c')
| -rw-r--r-- | drivers/tty/hvc/hvc_dcc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/hvc/hvc_dcc.c b/drivers/tty/hvc/hvc_dcc.c index 435f6facbc23..44fbebab5075 100644 --- a/drivers/tty/hvc/hvc_dcc.c +++ b/drivers/tty/hvc/hvc_dcc.c @@ -46,6 +46,7 @@ static inline char __dcc_getchar(void) asm volatile("mrc p14, 0, %0, c0, c5, 0 @ read comms data reg" : "=r" (__c)); + isb(); return __c; } @@ -55,6 +56,7 @@ static inline void __dcc_putchar(char c) asm volatile("mcr p14, 0, %0, c0, c5, 0 @ write a char" : /* no output register */ : "r" (c)); + isb(); } static int hvc_dcc_put_chars(uint32_t vt, const char *buf, int count) |