From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Daniel Vetter <daniel.vetter@intel.com>,
Jani Nikula <jani.nikula@linux.intel.com>,
David Airlie <airlied@linux.ie>
Cc: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org,
Chris Wilson <chris@chris-wilson.co.uk>,
Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Subject: [PATCH v2] drm/i915: remove unnecessary null test
Date: Mon, 20 Jul 2015 20:36:01 +0530 [thread overview]
Message-ID: <1437404761-2617-1-git-send-email-sudipm.mukherjee@gmail.com> (raw)
While creating the debugfs file we are setting the inode->i_private to
dev. That same dev is passed to these functions as private of struct
seq_file via single_open(). So at this point it can never be NULL.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
---
v1 was drm/i915: fix possible null pointer dereference
drivers/gpu/drm/i915/i915_debugfs.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index bc817da..63cb886 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4103,9 +4103,6 @@ static int i915_displayport_test_active_show(struct seq_file *m, void *data)
struct list_head *connector_list = &dev->mode_config.connector_list;
struct intel_dp *intel_dp;
- if (!dev)
- return -ENODEV;
-
list_for_each_entry(connector, connector_list, head) {
if (connector->connector_type !=
@@ -4150,9 +4147,6 @@ static int i915_displayport_test_data_show(struct seq_file *m, void *data)
struct list_head *connector_list = &dev->mode_config.connector_list;
struct intel_dp *intel_dp;
- if (!dev)
- return -ENODEV;
-
list_for_each_entry(connector, connector_list, head) {
if (connector->connector_type !=
@@ -4192,9 +4186,6 @@ static int i915_displayport_test_type_show(struct seq_file *m, void *data)
struct list_head *connector_list = &dev->mode_config.connector_list;
struct intel_dp *intel_dp;
- if (!dev)
- return -ENODEV;
-
list_for_each_entry(connector, connector_list, head) {
if (connector->connector_type !=
--
1.8.1.2
next reply other threads:[~2015-07-20 15:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-20 15:06 Sudip Mukherjee [this message]
2015-07-20 15:33 ` [Intel-gfx] [PATCH v2] drm/i915: remove unnecessary null test Daniel Vetter
2015-07-21 6:41 ` Sudip Mukherjee
2015-07-21 7:37 ` Daniel Vetter
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=1437404761-2617-1-git-send-email-sudipm.mukherjee@gmail.com \
--to=sudipm.mukherjee@gmail.com \
--cc=airlied@linux.ie \
--cc=chris@chris-wilson.co.uk \
--cc=daniel.vetter@intel.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=intel-gfx@lists.freedesktop.org \
--cc=jani.nikula@linux.intel.com \
--cc=linux-kernel@vger.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;
as well as URLs for NNTP newsgroup(s).