rbd: fix split bio handling

[cascardo/linux.git] / drivers / mtd / mtdconcat.c

diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 5f5777b..5060e60 100644 (file)
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -750,6 +750,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],       /* subdevices to c
        struct mtd_concat *concat;
        uint32_t max_erasesize, curr_erasesize;
        int num_erase_region;
+       int max_writebufsize = 0;
 
        printk(KERN_NOTICE "Concatenating MTD devices:\n");
        for (i = 0; i < num_devs; i++)
@@ -776,7 +777,12 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],      /* subdevices to c
        concat->mtd.size = subdev[0]->size;
        concat->mtd.erasesize = subdev[0]->erasesize;
        concat->mtd.writesize = subdev[0]->writesize;
-       concat->mtd.writebufsize = subdev[0]->writebufsize;
+
+       for (i = 0; i < num_devs; i++)
+               if (max_writebufsize < subdev[i]->writebufsize)
+                       max_writebufsize = subdev[i]->writebufsize;
+       concat->mtd.writebufsize = max_writebufsize;
+
        concat->mtd.subpage_sft = subdev[0]->subpage_sft;
        concat->mtd.oobsize = subdev[0]->oobsize;
        concat->mtd.oobavail = subdev[0]->oobavail;