From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 15 Apr 2023 18:39:13 +0000 (+0200)
Subject: 4.19-stable patches
X-Git-Tag: v4.14.313~55
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d3654a197066a6a0ea0ff1125db166f8900893bd;p=thirdparty%2Fkernel%2Fstable-queue.git

4.19-stable patches

added patches:
	mtdblock-tolerate-corrected-bit-flips.patch
---

diff --git a/queue-4.19/mtdblock-tolerate-corrected-bit-flips.patch b/queue-4.19/mtdblock-tolerate-corrected-bit-flips.patch
new file mode 100644
index 00000000000..e8ab9291072
--- /dev/null
+++ b/queue-4.19/mtdblock-tolerate-corrected-bit-flips.patch
@@ -0,0 +1,58 @@
+From 0c3089601f064d80b3838eceb711fcac04bceaad Mon Sep 17 00:00:00 2001
+From: Bang Li <libang.linuxer@gmail.com>
+Date: Wed, 29 Mar 2023 00:30:12 +0800
+Subject: mtdblock: tolerate corrected bit-flips
+
+From: Bang Li <libang.linuxer@gmail.com>
+
+commit 0c3089601f064d80b3838eceb711fcac04bceaad upstream.
+
+mtd_read() may return -EUCLEAN in case of corrected bit-flips.This
+particular condition should not be treated like an error.
+
+Signed-off-by: Bang Li <libang.linuxer@gmail.com>
+Fixes: e47f68587b82 ("mtd: check for max_bitflips in mtd_read_oob()")
+Cc: <stable@vger.kernel.org> # v3.7
+Acked-by: Richard Weinberger <richard@nod.at>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20230328163012.4264-1-libang.linuxer@gmail.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/mtd/mtdblock.c |   12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+--- a/drivers/mtd/mtdblock.c
++++ b/drivers/mtd/mtdblock.c
+@@ -164,7 +164,7 @@ static int do_cached_write (struct mtdbl
+ 				mtdblk->cache_state = STATE_EMPTY;
+ 				ret = mtd_read(mtd, sect_start, sect_size,
+ 					       &retlen, mtdblk->cache_data);
+-				if (ret)
++				if (ret && !mtd_is_bitflip(ret))
+ 					return ret;
+ 				if (retlen != sect_size)
+ 					return -EIO;
+@@ -199,8 +199,12 @@ static int do_cached_read (struct mtdblk
+ 	pr_debug("mtdblock: read on \"%s\" at 0x%lx, size 0x%x\n",
+ 			mtd->name, pos, len);
+ 
+-	if (!sect_size)
+-		return mtd_read(mtd, pos, len, &retlen, buf);
++	if (!sect_size) {
++		ret = mtd_read(mtd, pos, len, &retlen, buf);
++		if (ret && !mtd_is_bitflip(ret))
++			return ret;
++		return 0;
++	}
+ 
+ 	while (len > 0) {
+ 		unsigned long sect_start = (pos/sect_size)*sect_size;
+@@ -220,7 +224,7 @@ static int do_cached_read (struct mtdblk
+ 			memcpy (buf, mtdblk->cache_data + offset, size);
+ 		} else {
+ 			ret = mtd_read(mtd, pos, size, &retlen, buf);
+-			if (ret)
++			if (ret && !mtd_is_bitflip(ret))
+ 				return ret;
+ 			if (retlen != size)
+ 				return -EIO;
diff --git a/queue-4.19/series b/queue-4.19/series
index d3772c940ee..99257435465 100644
--- a/queue-4.19/series
+++ b/queue-4.19/series
@@ -32,3 +32,4 @@ alsa-i2c-cs8427-fix-iec958-mixer-control-deactivation.patch
 alsa-hda-sigmatel-fix-s-pdif-out-on-intel-d-45-motherboards.patch
 bluetooth-l2cap-fix-use-after-free-in-l2cap_disconnect_-req-rsp.patch
 bluetooth-fix-race-condition-in-hidp_session_thread.patch
+mtdblock-tolerate-corrected-bit-flips.patch