From: Guennadi Liakhovetski Date: Fri, 3 Sep 2010 07:20:23 +0000 (+0000) Subject: fbdev: sh_mobile_hdmi: implement locking X-Git-Tag: v2.6.37-rc1~23^2^2^2~22 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6de9edd5bde0cdfea12e9948690e53ec669c3018;p=pandora-kernel.git fbdev: sh_mobile_hdmi: implement locking The SH-Mobile HDMI driver runs in several contexts: ISR, delayed work-queue, task context, when called from the sh_mobile_lcdc framebuffer driver. This creates ample race possibilities. Even though most these races are purely theoretical, it is better to close them. To trace fb_info validity we install a notification callback in the HDMI driver, and the only way for it to get to driver internal data is by using struct sh_mobile_lcdc_chan, therefore it had to be extracted into a separate common header. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Paul Mundt --- Reading git-diff-tree failed