From: Eli Cohen Date: Thu, 23 Oct 2014 12:57:27 +0000 (+0300) Subject: net/mlx4_core: Call synchronize_irq() before freeing EQ buffer X-Git-Tag: omap-for-v3.19/fixes-not-urgent-part1~25^2~36^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf1bac5b7882daa41249f85fbc97828f0597de5c;p=pandora-kernel.git net/mlx4_core: Call synchronize_irq() before freeing EQ buffer After moving the EQ ownership to software effectively destroying it, call synchronize_irq() to ensure that any handler routines running on other CPU cores finish execution. Only then free the EQ buffer. The same thing is done when we destroy a CQ which is one of the sources generating interrupts. In the case of CQ we want to avoid completion handlers on a CQ that was destroyed. In the case we do the same to avoid receiving asynchronous events after the EQ has been destroyed and its buffers freed. Signed-off-by: Eli Cohen Signed-off-by: David S. Miller --- Reading git-diff-tree failed