Commit 5ad43ff9 authored Jul 27, 2010 by Daniel Walker

drivers: video: msm: fix hang on disable_irq

There's a resource race around disable_irq. Using the nosync
version allows the function to continue and prevents the hang.

Adapted from Arve Hjønnevåg <arve@android.com> changes in the Google tree.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

parent 461cbe77

drivers/video/msm/mdp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -90,7 +90,7 @@ static int locked_disable_mdp_irq(struct mdp_info *mdp, uint32_t mask)
		mdp_irq_mask &= ~(mask);
		/* if no one is waiting on the interrupt, disable it */
		if (!mdp_irq_mask) {
		disable_irq(mdp->irq);
		disable_irq_nosync(mdp->irq);
		if (clk)
		clk_disable(clk);
		}