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-rw-r--r--include/linux/mtd/mtd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index b355a83e7cc2..2c2a92247e5a 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -280,6 +280,8 @@ static inline unsigned long mtd_get_unmapped_area(struct mtd_info *mtd,
unsigned long offset,
unsigned long flags)
{
+ if (!mtd->get_unmapped_area)
+ return -EOPNOTSUPP;
return mtd->get_unmapped_area(mtd, len, offset, flags);
}
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