summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2015-08-31 13:15:03 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2015-11-23 10:36:13 +0100
commit770c1ef83c2628cea4e9070810609b102037339a (patch)
treea24e8c8b3b3729321f36736249614289be0e7359
parentb9170a1bde192c691f15c4474ed2f1e7bfebbb41 (diff)
downloadbarebox-770c1ef83c2628cea4e9070810609b102037339a.tar.gz
mtd: core: initialize *retlen in mtd_write()
Some mtd drivers like the spi-nor driver do not assign a value to the retlen pointer but instead only add the bytes written to *retlen. Users of mtd_write expect the variable to be initialized by the mtd core though, so we have to do it in mtd_write(). The same is done in mtd_read already. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--drivers/mtd/core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/core.c b/drivers/mtd/core.c
index d873369..62307db 100644
--- a/drivers/mtd/core.c
+++ b/drivers/mtd/core.c
@@ -340,6 +340,8 @@ int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
const u_char *buf)
{
+ *retlen = 0;
+
return mtd->write(mtd, to, len, retlen, buf);
}