Commit 51d33021 authored Jul 05, 2011 by Anton Blanchard Committed by Benjamin Herrenschmidt Jul 19, 2011

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>

parent 8c2381af

arch/powerpc/platforms/pseries/hvconsole.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}

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