disk/part.c: Fix device enumeration through API
The patch below fixes device enumeration through the U-Boot API.
Device enumeration crashes when the system in question doesn't
have any RAM mapped to address zero (I discovered this on a
BeagleBone board), since the enumeration calls get_dev with a
NULL ifname sometimes which then gets passed down to strncmp().
This fix simply ensures that get_dev returns NULL when invoked
with a NULL ifname.
Signed-off-by: Tim Kientzle <kientzle@freebsd.org>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/disk/part.c b/disk/part.c
index f07a17f..8ca5d4b 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -80,6 +80,9 @@
block_dev_desc_t* (*reloc_get_dev)(int dev);
char *name;
+ if (!ifname)
+ return NULL;
+
name = drvr->name;
#ifdef CONFIG_NEEDS_MANUAL_RELOC
name += gd->reloc_off;