Re: [PATCH] IPC: bugfix for msgrcv with msgtyp < 0

From: Peter Hurley
Date: Sat Aug 24 2013 - 09:00:47 EST


On 08/24/2013 07:44 AM, Svenning SÃrensen wrote:
According to 'man msgrcv':
"If msgtyp is less than 0, the first message of the lowest type that is less
than or equal to the absolute value of msgtyp shall be received."

Bug: The kernel only returns a message if its type is 1; other messages with
type < abs(msgtype) will never get returned.

Fix: After having traversed the list to find the first message with the
lowest type, we need to actually return that message.

Sorry for the breakage. Needs to go to -stable as well.

Reviewed-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>


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