Staging: zram: make zram_read return a bio error if the device is not initialized

Make zram_read() return a bio error if the device is not initialized
instead of pretending nothing happened.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 0ab931e..01d6dd9 100644 (file)
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -208,8 +208,7 @@ static int zram_read(struct zram *zram, struct bio *bio)
        struct bio_vec *bvec;
 
        if (unlikely(!zram->init_done)) {
-               set_bit(BIO_UPTODATE, &bio->bi_flags);
-               bio_endio(bio, 0);
+               bio_endio(bio, -ENXIO);
                return 0;
        }