powerpc/pseries/hvconsole: Fix dropped console output · 51d3302142 - Gogs

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>

Anton Blanchard 14 years ago

parent

8c2381af0d

commit

51d3302142

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
arch/powerpc/platforms/pseries/hvconsole.c
							 
								View File
							
				@@ -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;
			
				 }