From: Cho KyongHo <pullip.cho@samsung.com>
Date: Mon, 18 May 2015 10:32:57 +0000 (+0900)
Subject: [COMMON] media: smfc: dump SFR when unexpected IRQ invoked
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=16e182f7436599dc6c35925f7319ec16a8218888;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[COMMON] media: smfc: dump SFR when unexpected IRQ invoked

Dumping SFR helps to debug unexpected IRQ.

Change-Id: I58aa822c127b8087beee5c521445a8f67e18db76
Signed-off-by: Cho KyongHo <pullip.cho@samsung.com>
---

diff --git a/drivers/media/platform/exynos/smfc/smfc.c b/drivers/media/platform/exynos/smfc/smfc.c
index 7a2cc4343fbf..3fd3e8360347 100644
--- a/drivers/media/platform/exynos/smfc/smfc.c
+++ b/drivers/media/platform/exynos/smfc/smfc.c
@@ -285,7 +285,10 @@ static irqreturn_t exynos_smfc_irq_handler(int irq, void *priv)
 	u32 thumb_streamsize = smfc_get_2nd_streamsize(smfc);
 	bool suspending = false;
 
-	BUG_ON(!(smfc->flags & SMFC_DEV_RUNNING));
+	if (!(smfc->flags & SMFC_DEV_RUNNING)) {
+		smfc_dump_registers(smfc);
+		BUG();
+	}
 
 	spin_lock(&smfc->flag_lock);
 	suspending = !!(smfc->flags & SMFC_DEV_SUSPENDING);