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Diffstat (limited to 'drivers/mtd/mtdcore.c')
-rw-r--r--drivers/mtd/mtdcore.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index b9b28647ade..ead52b38849 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -744,6 +744,7 @@ EXPORT_SYMBOL_GPL(mtd_get_unmapped_area);
int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
u_char *buf)
{
+ *retlen = 0;
if (from < 0 || from > mtd->size || len > mtd->size - from)
return -EINVAL;
return mtd->_read(mtd, from, len, retlen, buf);