| 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
| ||
|
Date: Wed, 4 Apr 2007 21:36:32 -0700
From: Randy Dunlap <randy.dunlap@...cle.com>
To: lkml <linux-kernel@...r.kernel.org>
Cc: akpm <akpm@...ux-foundation.org>
Subject: [PATCH] various drivers PCI must_checks
From: Randy Dunlap <randy.dunlap@...cle.com>
Check PCI interface function results in parport, serial, & video drivers.
drivers/parport/parport_serial.c:402: warning: ignoring return value of 'pci_enable_device', declared with attribute warn_unused_result
drivers/serial/8250_pci.c:1826: warning: ignoring return value of 'pci_enable_device', declared with attribute warn_unused_result
drivers/video/s3fb.c:1078: warning: ignoring return value of 'pci_enable_device', declared with attribute warn_unused_result
Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
---
drivers/parport/parport_serial.c | 8 +++++++-
drivers/serial/8250_pci.c | 10 +++++++++-
drivers/video/s3fb.c | 9 ++++++++-
3 files changed, 24 insertions(+), 3 deletions(-)
--- linux-2.6.21-rc5-mm4.orig/drivers/parport/parport_serial.c
+++ linux-2.6.21-rc5-mm4/drivers/parport/parport_serial.c
@@ -392,6 +392,7 @@ static int parport_serial_pci_suspend(st
static int parport_serial_pci_resume(struct pci_dev *dev)
{
struct parport_serial_private *priv = pci_get_drvdata(dev);
+ int err;
pci_set_power_state(dev, PCI_D0);
pci_restore_state(dev);
@@ -399,7 +400,12 @@ static int parport_serial_pci_resume(str
/*
* The device may have been disabled. Re-enable it.
*/
- pci_enable_device(dev);
+ err = pci_enable_device(dev);
+ if (err) {
+ printk(KERN_ERR "parport_serial: %s: error enabling "
+ "device for resume (%d)\n", pci_name(dev), err);
+ return err;
+ }
if (priv->serial)
pciserial_resume_ports(priv->serial);
--- linux-2.6.21-rc5-mm4.orig/drivers/serial/8250_pci.c
+++ linux-2.6.21-rc5-mm4/drivers/serial/8250_pci.c
@@ -1820,10 +1820,18 @@ static int pciserial_resume_one(struct p
pci_restore_state(dev);
if (priv) {
+ int err;
+
/*
* The device may have been disabled. Re-enable it.
*/
- pci_enable_device(dev);
+ err = pci_enable_device(dev);
+ if (err) {
+ printk(KERN_ERR "8250_pci: %s: error %d "
+ "enabling device for resume\n",
+ pci_name(dev), err);
+ return err;
+ }
pciserial_resume_ports(priv);
}
--- linux-2.6.21-rc5-mm4.orig/drivers/video/s3fb.c
+++ linux-2.6.21-rc5-mm4/drivers/video/s3fb.c
@@ -1061,6 +1061,7 @@ static int s3_pci_resume(struct pci_dev*
{
struct fb_info *info = pci_get_drvdata(dev);
struct s3fb_info *par = info->par;
+ int err;
dev_info(&(dev->dev), "resume\n");
@@ -1075,7 +1076,13 @@ static int s3_pci_resume(struct pci_dev*
pci_set_power_state(dev, PCI_D0);
pci_restore_state(dev);
- pci_enable_device(dev);
+ err = pci_enable_device(dev);
+ if (err) {
+ mutex_unlock(&(par->open_lock));
+ release_console_sem();
+ dev_err(&(dev->dev), "error %d enabling device for resume\n", err);
+ return err;
+ }
pci_set_master(dev);
s3fb_set_par(info);
-
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/
Powered by blists - more mailing lists