[PATCH 2/8] mmc: handle add_disk() return value

Vishnu Pratap Singh
2015-11-06T12:26:48Z

This patch handles add_disk() return value.
Earlier add_disk() function doesn't handle error
cases, now it is added, so the callers of this function
should also handle it.

Verfied on X86 based ubuntu machine.
This patch depends on [PATCH 1/8] block/genhd.c: Add error handling

Signed-off-by: Vishnu Pratap Singh <vishnu.ps@samsung.com>
---
drivers/mmc/card/block.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 23b6c8e..543c670 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2432,7 +2432,10 @@ static int mmc_add_disk(struct mmc_blk_data *md)
int ret;
struct mmc_card *card = md->queue.card;

- add_disk(md->disk);
+ ret = add_disk(md->disk);
+ if (ret)
+ goto add_disk_fail;
+
md->force_ro.show = force_ro_show;
md->force_ro.store = force_ro_store;
sysfs_attr_init(&md->force_ro.attr);
@@ -2468,7 +2471,7 @@ power_ro_lock_fail:
device_remove_file(disk_to_dev(md->disk), &md->force_ro);
force_ro_fail:
del_gendisk(md->disk);
-
+add_disk_fail:
return ret;
}

--
1.9.1