Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 5ad43ff9 authored by Daniel Walker's avatar Daniel Walker
Browse files

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: default avatarDaniel Walker <dwalker@codeaurora.org>
parent 461cbe77

drivers/video/msm/mdp.c

+1 −1
Original line number Original line 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);

	mdp_irq_mask &= ~(mask);

	/* if no one is waiting on the interrupt, disable it */

	/* if no one is waiting on the interrupt, disable it */

	if (!mdp_irq_mask) {

	if (!mdp_irq_mask) {

		disable_irq(mdp->irq);

		disable_irq_nosync(mdp->irq);

		if (clk)

		if (clk)

			clk_disable(clk);

			clk_disable(clk);

	}

	}