diff options
| author | Anton Blanchard <anton@samba.org> | 2011-07-05 21:51:36 +0000 |
|---|---|---|
| committer | Jonas ABERG <jonas.aberg@stericsson.com> | 2011-10-28 11:15:36 +0200 |
| commit | 46443ef544c5f25f10f6673afe35368ac57c1543 (patch) | |
| tree | b26b3225f0ab0d867a71fd4b37da7268011a3aab | |
| parent | e3feeb658cd45fd7a5149353741d3afcf5dd44fa (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: Greg Kroah-Hartman <gregkh@suse.de>
Change-Id: I5be537034d82c0abef3e7fa72ac3c8a8fdd6ff09
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/35667
Tested-by: Per VAHLNE <per.xx.vahlne@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.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 3f6a89b0981..041e87ca189 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; } |