diff options
| author | Anton Blanchard <anton@samba.org> | 2011-07-05 21:51:36 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-07-19 15:13:05 +1000 |
| commit | 51d33021425e1f905beb4208823146f2fb6517da (patch) | |
| tree | e414b64ab60def4ddde52da3696e31cc8df5e078 /arch | |
| parent | 8c2381af0d3ef62a681dac5a141b6dabb27bf2e1 (diff) | |
| download | linux-51d33021425e1f905beb4208823146f2fb6517da.tar.gz linux-51d33021425e1f905beb4208823146f2fb6517da.tar.xz linux-51d33021425e1f905beb4208823146f2fb6517da.zip | |
powerpc/pseries/hvconsole: Fix dropped console output
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>
Diffstat (limited to 'arch')
| -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; } |