From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-media@vger.kernel.org,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Max Kellermann <max.kellermann@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 4/4] [media] ds3000: Delete jump targets in ds3000_attach()
Date: Wed, 30 Aug 2017 22:24:26 +0200 [thread overview]
Message-ID: <6845c215-eeb8-5286-6049-ea4befb645ae@users.sourceforge.net> (raw)
In-Reply-To: <c854b845-3b79-ca7a-a597-4abc5f32ec54@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 30 Aug 2017 22:02:54 +0200
* Return directly after a call of the function "kzalloc" failed
at the beginning.
* Move a bit of exception handling code into an if branch.
* Delete two jump targets which became unnecessary with this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/media/dvb-frontends/ds3000.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/media/dvb-frontends/ds3000.c b/drivers/media/dvb-frontends/ds3000.c
index 3e347d03acb3..bd4f8278c906 100644
--- a/drivers/media/dvb-frontends/ds3000.c
+++ b/drivers/media/dvb-frontends/ds3000.c
@@ -841,7 +841,7 @@ struct dvb_frontend *ds3000_attach(const struct ds3000_config *config,
/* allocate memory for the internal state */
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
- goto error2;
+ return NULL;
state->config = config;
state->i2c = i2c;
@@ -850,8 +850,9 @@ struct dvb_frontend *ds3000_attach(const struct ds3000_config *config,
/* check if the demod is present */
ret = ds3000_readreg(state, 0x00) & 0xfe;
if (ret != 0xe0) {
+ kfree(state);
printk(KERN_ERR "Invalid probe, probably not a DS3000\n");
- goto error3;
+ return NULL;
}
printk(KERN_INFO "DS3000 chip version: %d.%d attached.\n",
@@ -869,11 +870,6 @@ struct dvb_frontend *ds3000_attach(const struct ds3000_config *config,
*/
ds3000_set_voltage(&state->frontend, SEC_VOLTAGE_OFF);
return &state->frontend;
-
-error3:
- kfree(state);
-error2:
- return NULL;
}
EXPORT_SYMBOL(ds3000_attach);
--
2.14.1
prev parent reply other threads:[~2017-08-30 20:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 20:20 [PATCH 0/4] [media] ds3000: Adjustments for two function implementations SF Markus Elfring
2017-08-30 20:21 ` [PATCH 1/4] [media] ds3000: Delete an error message for a failed memory allocation in two functions SF Markus Elfring
2017-08-30 20:22 ` [PATCH 2/4] [media] ds3000: Improve a size determination in ds3000_attach() SF Markus Elfring
2017-08-30 20:23 ` [PATCH 3/4] [media] ds3000: Delete an unnecessary variable initialisation " SF Markus Elfring
2017-08-30 20:24 ` SF Markus Elfring [this message]
Reply instructions:
You may reply publicly 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:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6845c215-eeb8-5286-6049-ea4befb645ae@users.sourceforge.net \
--to=elfring@users.sourceforge.net \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=max.kellermann@gmail.com \
--cc=mchehab@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome