linux-kernel - PNP: skip dev->protocol NULL checks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Thu, 21 Feb 2008 09:15:39 -0700
From:	Bjorn Helgaas <bjorn.helgaas@...com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Adam Belay <ambx1@....rr.com>, linux-kernel@...r.kernel.org,
	Adrian Bunk <bunk@...nel.org>,
	Rene Herman <rene.herman@...access.nl>
Subject: PNP: skip dev->protocol NULL checks

Every PNP device should have a valid protocol pointer.  If it doesn't,
something's wrong and we should oops so we can find and fix the problem.

[This fixes a Coverity warning, but does not need to be in 2.6.25.
I'd rather have it in -mm for a while and put it in 2.6.26.]

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@...com>

Index: work6/drivers/pnp/driver.c
===================================================================
--- work6.orig/drivers/pnp/driver.c	2008-02-20 09:46:01.000000000 -0700
+++ work6/drivers/pnp/driver.c	2008-02-20 09:46:28.000000000 -0700
@@ -167,7 +167,7 @@
 			return error;
 	}
 
-	if (pnp_dev->protocol && pnp_dev->protocol->suspend)
+	if (pnp_dev->protocol->suspend)
 		pnp_dev->protocol->suspend(pnp_dev, state);
 	return 0;
 }
@@ -181,7 +181,7 @@
 	if (!pnp_drv)
 		return 0;
 
-	if (pnp_dev->protocol && pnp_dev->protocol->resume)
+	if (pnp_dev->protocol->resume)
 		pnp_dev->protocol->resume(pnp_dev);
 
 	if (pnp_can_write(pnp_dev)) {
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/