From: Devendra Naga <develkernel412222@gmail.com>
Date: Sun, 5 Aug 2012 21:14:56 +0000 (+0545)
Subject: staging/crystalhd: unregister chardev when class_create fails in chd_dec_init_chdev
X-Git-Tag: firefly_0821_release~3680^2~1977^2~968
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=675fe097568894708afd3b264e4122589e879f40;p=firefly-linux-kernel-4.4.55.git

staging/crystalhd: unregister chardev when class_create fails in chd_dec_init_chdev

we missed a unregiser_chrdev if the class_create and subsequent function calls / checks fail

Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/crystalhd/crystalhd_lnx.c b/drivers/staging/crystalhd/crystalhd_lnx.c
index 0582ac04b75c..5909d8d1b4d5 100644
--- a/drivers/staging/crystalhd/crystalhd_lnx.c
+++ b/drivers/staging/crystalhd/crystalhd_lnx.c
@@ -375,7 +375,7 @@ static int __devinit chd_dec_init_chdev(struct crystalhd_adp *adp)
 	if (IS_ERR(crystalhd_class)) {
 		rc = PTR_ERR(crystalhd_class);
 		BCMLOG_ERR("failed to create class\n");
-		goto fail;
+		goto class_create_fail;
 	}
 
 	dev = device_create(crystalhd_class, NULL, MKDEV(adp->chd_dec_major, 0),
@@ -412,6 +412,8 @@ elem_pool_fail:
 	device_destroy(crystalhd_class, MKDEV(adp->chd_dec_major, 0));
 device_create_fail:
 	class_destroy(crystalhd_class);
+class_create_fail:
+	unregister_chrdev(adp->chd_dec_major, CRYSTALHD_API_NAME);
 fail:
 	return rc;
 }