Merge tag 'mtd/for-4.18' of git://git.infradead.org/linux-mtd

[linux-2.6-block.git] / drivers / mtd / mtdcore.c

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 64a1fcaafd9a461846745674229b47b2ee3ceed2..42395df06be9ab3f8a5fd42920e23f9307f2d0b7 100644 (file)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -210,6 +210,15 @@ static ssize_t mtd_oobsize_show(struct device *dev,
 }
 static DEVICE_ATTR(oobsize, S_IRUGO, mtd_oobsize_show, NULL);
 
+static ssize_t mtd_oobavail_show(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+       struct mtd_info *mtd = dev_get_drvdata(dev);
+
+       return snprintf(buf, PAGE_SIZE, "%u\n", mtd->oobavail);
+}
+static DEVICE_ATTR(oobavail, S_IRUGO, mtd_oobavail_show, NULL);
+
 static ssize_t mtd_numeraseregions_show(struct device *dev,
                struct device_attribute *attr, char *buf)
 {
@@ -327,6 +336,7 @@ static struct attribute *mtd_attrs[] = {
        &dev_attr_writesize.attr,
        &dev_attr_subpagesize.attr,
        &dev_attr_oobsize.attr,
+       &dev_attr_oobavail.attr,
        &dev_attr_numeraseregions.attr,
        &dev_attr_name.attr,
        &dev_attr_ecc_strength.attr,
@@ -690,7 +700,6 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types,
                              const struct mtd_partition *parts,
                              int nr_parts)
 {
-       struct mtd_partitions parsed = { };
        int ret;
 
        mtd_set_dev_defaults(mtd);
@@ -702,13 +711,10 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types,
        }
 
        /* Prefer parsed partitions over driver-provided fallback */
-       ret = parse_mtd_partitions(mtd, types, &parsed, parser_data);
-       if (!ret && parsed.nr_parts) {
-               parts = parsed.parts;
-               nr_parts = parsed.nr_parts;
-       }
-
-       if (nr_parts)
+       ret = parse_mtd_partitions(mtd, types, parser_data);
+       if (ret > 0)
+               ret = 0;
+       else if (nr_parts)
                ret = add_mtd_partitions(mtd, parts, nr_parts);
        else if (!device_is_registered(&mtd->dev))
                ret = add_mtd_device(mtd);
@@ -734,8 +740,6 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types,
        }
 
 out:
-       /* Cleanup any parsed partitions */
-       mtd_part_parser_cleanup(&parsed);
        if (ret && device_is_registered(&mtd->dev))
                del_mtd_device(mtd);