diff options
| author | Anton Blanchard <anton@samba.org> | 2011-07-05 21:51:36 +0000 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2011-08-01 13:55:01 -0700 |
| commit | bf7b6215667dd484edf6aa03b764927afc6a6c76 (patch) | |
| tree | 5f56b33988550a0204191f5f35db82aeb106e2c6 | |
| parent | 5671ba64a10a8150de56a8131cf0084381ca79ba (diff) | |
powerpc/pseries/hvconsole: Fix dropped console output
[ upstream commit 51d33021425e1f905beb4208823146f2fb6517da ]
Return -EAGAIN when we get H_BUSY back from the hypervisor. This
makes the hvc console driver retry, avoiding dropped printks.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
| -rw-r--r-- | arch/powerpc/platforms/pseries/hvconsole.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c index 3f6a89b09816..041e87ca1893 100644 --- a/arch/powerpc/platforms/pseries/hvconsole.c +++ b/arch/powerpc/platforms/pseries/hvconsole.c @@ -73,7 +73,7 @@ int hvc_put_chars(uint32_t vtermno, const char *buf, int count) if (ret == H_SUCCESS) return count; if (ret == H_BUSY) - return 0; + return -EAGAIN; return -EIO; } |