unlink old database file before creating a new one

udev_db_add_device() can be called when the corressponding database entry already exists - it should overwrite the old entry in this case. However, if the old entry was a symlink, fopen(filename, "w") will not overwrite it properly - it will keep the symlink and create a file named after the symlink target. Calling unlink(filename) before trying to create the database file fixes the problem.

---
 udev_db.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

index f3c9509..b1217d8 100644
@@ -93,6 +93,7 @@ int udev_db_add_device(struct udevice *udev)
 		struct name_entry *name_loop;
 		FILE *f;
 
+		unlink(filename);
 		f = fopen(filename, "w");
 		if (f = NULL) {
 			err("unable to create db file '%s': %s", filename, strerror(errno));

1.5.0.rc2.gd894fb


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Applied.

Thanks,
Kay

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