From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 21 May 2016 13:16:09 +0000 (+0200)
Subject: mvebu: prevent crash in the flash driver in case of a spurious interrupt
X-Git-Tag: v17.01.0-rc1~2715
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f0dd81043cc2d6555c1e686365db8e1f48732acf;p=oweals%2Fopenwrt.git

mvebu: prevent crash in the flash driver in case of a spurious interrupt

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/target/linux/mvebu/patches-4.4/103-remove-nand-driver-bug.patch b/target/linux/mvebu/patches-4.4/103-remove-nand-driver-bug.patch
new file mode 100644
index 0000000000..e9cc027b3c
--- /dev/null
+++ b/target/linux/mvebu/patches-4.4/103-remove-nand-driver-bug.patch
@@ -0,0 +1,13 @@
+Remove a BUG() call that would crash on a race condition that should
+otherwise be harmless.
+
+--- a/drivers/mtd/nand/pxa3xx_nand.c
++++ b/drivers/mtd/nand/pxa3xx_nand.c
+@@ -701,7 +701,6 @@ static void handle_data_pio(struct pxa3x
+ 	default:
+ 		dev_err(&info->pdev->dev, "%s: invalid state %d\n", __func__,
+ 				info->state);
+-		BUG();
+ 	}
+ 
+ 	/* Update buffer pointers for multi-page read/write */