diff options
| author | Simon Glass <sjg@chromium.org> | 2017-04-23 20:02:06 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2017-06-01 07:03:05 -0600 |
| commit | e8abbb531f506dc0cac973b86fb5fa01f0bf88c4 (patch) | |
| tree | f5f7afe02aa27b986da021ab252bf97e69ec2b74 /drivers/block | |
| parent | 6139281a6473334351c8776643478c0b0e208342 (diff) | |
dm: blk: Add a function to find the next block device number
At present this code is inline. Move it into a function to allow it to
be used elsewhere.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/blk-uclass.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c index 8b6b28d890..881c39f774 100644 --- a/drivers/block/blk-uclass.c +++ b/drivers/block/blk-uclass.c @@ -473,6 +473,19 @@ int blk_find_max_devnum(enum if_type if_type) return max_devnum; } +static int blk_next_free_devnum(enum if_type if_type) +{ + int ret; + + ret = blk_find_max_devnum(if_type); + if (ret == -ENODEV) + return 0; + if (ret < 0) + return ret; + + return ret + 1; +} + int blk_create_device(struct udevice *parent, const char *drv_name, const char *name, int if_type, int devnum, int blksz, lbaint_t size, struct udevice **devp) @@ -482,13 +495,10 @@ int blk_create_device(struct udevice *parent, const char *drv_name, int ret; if (devnum == -1) { - ret = blk_find_max_devnum(if_type); - if (ret == -ENODEV) - devnum = 0; - else if (ret < 0) + ret = blk_next_free_devnum(if_type); + if (ret < 0) return ret; - else - devnum = ret + 1; + devnum = ret; } ret = device_bind_driver(parent, drv_name, name, &dev); if (ret) |