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From srivatsa.bhat@linux.vnet.ibm.com Thu Mar 1 13:32:36 2012
From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Date: Wed, 29 Feb 2012 12:24:56 +0530
Subject: PM / Sleep: Fix read_unlock_usermodehelper() call.
To: gregkh@linuxfoundation.org
Cc: stable@vger.kernel.org, rjw@sisk.pl, valdis.kletnieks@vt.edu, cloos@hjcloos.com, riesebie@lxtec.de, torvalds@linux-foundation.org, penguin-kernel@i-love.sakura.ne.jp, srivatsa.bhat@linux.vnet.ibm.com
Message-ID: <20120229065409.4761.81272.stgit@srivatsabhat.in.ibm.com>
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
[ Upstream commit e4c89a508f4385a0cd8681c2749a2cd2fa476e40 ]
Commit b298d289
"PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()"
added read_unlock_usermodehelper() but read_unlock_usermodehelper() is called
without read_lock_usermodehelper() when kmalloc() failed.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/firmware_class.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -493,8 +493,7 @@ _request_firmware(const struct firmware
if (!firmware) {
dev_err(device, "%s: kmalloc(struct firmware) failed\n",
__func__);
- retval = -ENOMEM;
- goto out;
+ return -ENOMEM;
}
for (builtin = __start_builtin_fw; builtin != __end_builtin_fw;
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