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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-usb@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Matthieu Castet <castet.matthieu@free.fr>,
	Stanislaw Gruszka <stf_xl@wp.pl>
Cc: LKML <linux-kernel@vger.kernel.org>,
	kernel-janitors@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>
Subject: [PATCH 1/4] ueagle-atm: Delete error messages for failed memory allocations in two functions
Date: Fri, 19 May 2017 19:47:27 +0200	[thread overview]
Message-ID: <e465c4ba-fe61-24c0-6e5b-b37abcf87d2c@users.sourceforge.net> (raw)
In-Reply-To: <d1c7c5d1-68b8-bbfc-8d0b-71a8e6cdd152@users.sourceforge.net>

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 19 May 2017 19:02:01 +0200

Omit two extra messages for memory allocation failures in these functions.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/usb/atm/ueagle-atm.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index df67815f74e6..16fd87df69e1 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -868,10 +868,8 @@ static int uea_idma_write(struct uea_softc *sc, const void *data, u32 size)
 	int bytes_read;
 
 	xfer_buff = kmemdup(data, size, GFP_KERNEL);
-	if (!xfer_buff) {
-		uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
+	if (!xfer_buff)
 		return ret;
-	}
 
 	ret = usb_bulk_msg(sc->usb_dev,
 			 usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
@@ -1147,10 +1145,8 @@ static int uea_request(struct uea_softc *sc,
 	int ret = -ENOMEM;
 
 	xfer_buff = kmemdup(data, size, GFP_KERNEL);
-	if (!xfer_buff) {
-		uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
+	if (!xfer_buff)
 		return ret;
-	}
 
 	ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
 			      UCDC_SEND_ENCAPSULATED_COMMAND,
-- 
2.13.0

  reply	other threads:[~2017-05-19 17:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-19 17:45 [PATCH 0/4] ueagle-atm: Adjustments for eight function implementations SF Markus Elfring
2017-05-19 17:47 ` SF Markus Elfring [this message]
2017-05-19 17:49 ` [PATCH 2/4] ueagle-atm: Improve a size determination in uea_bind() SF Markus Elfring
2017-05-19 17:50 ` [PATCH 3/4] ueagle-atm: Delete unnecessary return statements in two functions SF Markus Elfring
2017-05-19 17:51 ` [PATCH 4/4] ueagle-atm: Adjust three checks for null pointers SF Markus Elfring

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