diff options
author | Anton Blanchard <anton@samba.org> | 2011-07-05 21:51:36 +0000 |
---|---|---|
committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2012-05-17 11:21:22 -0400 |
commit | 6dde6e7d348ebdd0a42cf3ef6f2226eb1ac34aa8 (patch) | |
tree | 7d998e77784032846ca89b46ac29bcf637a2f547 | |
parent | 59721dbbb0e2160ca536036c0047c534e2692213 (diff) |
powerpc/pseries/hvconsole: Fix dropped console output
commit 51d33021425e1f905beb4208823146f2fb6517da upstream.
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>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.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; } |