Linux-Next Archive on
 help / color / Atom feed
From: coverity-bot <>
To: Lars Poeschel <>
Cc: "David S. Miller" <>,
	"Gustavo A. R. Silva" <>,
Subject: Coverity: pn532_dev_up(): Error handling issues
Date: Mon, 4 Nov 2019 09:41:42 -0800
Message-ID: <201911040941.4AECB815@keescook> (raw)


This is an experimental automated report about issues detected by Coverity
from a scan of next-20191031 as part of the linux-next weekly scan project:

You're getting this email because you were associated with the identified
lines of code (noted below) that were touched by recent commits:

c656aa4c27b1 ("nfc: pn533: add UART phy driver")

Coverity reported the following:

*** CID 1487395:  Error handling issues  (CHECKED_RETURN)
/drivers/nfc/pn533/uart.c: 107 in pn532_dev_up()
101     }
103     static void pn532_dev_up(struct pn533 *dev)
104     {
105     	struct pn532_uart_phy *pn532 = dev->phy;
vvv     CID 1487395:  Error handling issues  (CHECKED_RETURN)
vvv     Calling "serdev_device_open" without checking return value (as is done elsewhere 10 out of 11 times).
107     	serdev_device_open(pn532->serdev);
108     	pn532->send_wakeup = PN532_SEND_LAST_WAKEUP;
109     }
111     static void pn532_dev_down(struct pn533 *dev)
112     {

If this is a false positive, please let us know so we can mark it as
such, or teach the Coverity rules to be smarter. If not, please make
sure fixes get into linux-next. :) For patches fixing this, please
include these lines (but double-check the "Fixes" first):

Reported-by: coverity-bot <>
Addresses-Coverity-ID: 1487395 ("Error handling issues")
Fixes: c656aa4c27b1 ("nfc: pn533: add UART phy driver")

Thanks for your attention!


                 reply index

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=201911040941.4AECB815@keescook \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Next Archive on

Archives are clonable:
	git clone --mirror linux-next/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-next linux-next/ \
	public-inbox-index linux-next

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone