linux-kernel - [PATCH 2/2] staging/crystalhd: unregister chardev when class_create fails in chd_dec_init

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Date:	Mon,  6 Aug 2012 02:59:56 +0545
From:	Devendra Naga <develkernel412222@...il.com>
To:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Cc:	Naren Sankar <nsankar@...adcom.com>,
	Jarod Wilson <jarod@...sonet.com>,
	Scott Davilla <davilla@....com>,
	Manu Abraham <abraham.manu@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jorgyano Vieira <jorgyano@...il.com>,
	Devendra Naga <develkernel412222@...il.com>
Subject: [PATCH 2/2] 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@...il.com>
---
 drivers/staging/crystalhd/crystalhd_lnx.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/crystalhd/crystalhd_lnx.c b/drivers/staging/crystalhd/crystalhd_lnx.c
index 0582ac0..5909d8d 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;
 }
-- 
1.7.9.5

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