From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sat, 29 Oct 2005 15:03:24 +0000 (+0100)
Subject: [ARM] Fix MTD device/partition destruction
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=822e5e72697ce06e4425c17d161b0482c7d9b6d4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[ARM] Fix MTD device/partition destruction

We should not delete MTD partitions when we registered a MTD
device.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index 50a1d434906a..c38c2c311b8e 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -137,6 +137,7 @@ struct sa_info {
 	struct mtd_partition	*parts;
 	struct mtd_info		*mtd;
 	int			num_subdev;
+	unsigned int		nr_parts;
 	struct sa_subdev_info	subdev[0];
 };
 
@@ -228,8 +229,12 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla
 	int i;
 
 	if (info->mtd) {
-		del_mtd_partitions(info->mtd);
-
+		if (info->nr_parts == 0)
+			del_mtd_device(info->mtd);
+#ifdef CONFIG_MTD_PARTITIONS
+		else
+			del_mtd_partitions(info->mtd);
+#endif
 #ifdef CONFIG_MTD_CONCAT
 		if (info->mtd != info->subdev[0].mtd)
 			mtd_concat_destroy(info->mtd);
@@ -396,6 +401,8 @@ static int __init sa1100_mtd_probe(struct device *dev)
 		add_mtd_partitions(info->mtd, parts, nr_parts);
 	}
 
+	info->nr_parts = nr_parts;
+
 	dev_set_drvdata(dev, info);
 	err = 0;