[U-Boot] [PATCH 3/8] dm: blk: Add a function to find the next block device number
Simon Glass
sjg at chromium.org
Mon Apr 24 02:02:06 UTC 2017
At present this code is inline. Move it into a function to allow it to
be used elsewhere.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
drivers/block/blk-uclass.c | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c
index 8b6b28d890..7947ca6f22 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;
+ else if (ret < 0)
+ return ret;
+ else
+ 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)
--
2.12.2.816.g2cccc81164-goog
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