[PATCH]: 2.5.54: fix oopsable bug in OSS PCI sound drivers

Thomas Sailer (sailer@scs.ch)
04 Jan 2003 04:18:21 +0100

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The following patch fixes an oopsable (according to a few reports) bug
in the multiple open exclusion logic in my sound drivers and a driver
derived from my code. If you intend to keep the OSS drivers for 2.6,
please apply.

Tom

--- sound/oss/es1370.c.orig 2003-01-02 04:23:16.000000000 +0100
+++ sound/oss/es1370.c 2003-01-03 22:41:49.000000000 +0100
@@ -3,7 +3,7 @@
/*
* es1370.c -- Ensoniq ES1370/Asahi Kasei AK4531 audio driver.
*
- * Copyright (C) 1998-2001 Thomas Sailer (t.sailer@alumni.ethz.ch)
+ * Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -117,6 +117,7 @@
* 07.01.2001 0.36 Timeout change in wrcodec as requested by Frank Klemm <pfk@fuchs.offl.uni-jena.de>
* 31.01.2001 0.37 Register/Unregister gameport
* Fix SETTRIGGER non OSS API conformity
+ * 03.01.2003 0.38 open_mode fixes from Georg Acher <acher@in.tum.de>
*
* some important things missing in Ensoniq documentation:
*
@@ -1807,7 +1808,7 @@
stop_adc(s);
dealloc_dmabuf(s, &s->dma_adc);
}
- s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
+ s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
wake_up(&s->open_wait);
up(&s->open_sem);
unlock_kernel();
@@ -2498,7 +2499,7 @@
set_current_state(TASK_RUNNING);
}
down(&s->open_sem);
- s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
+ s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
s->ctrl &= ~CTRL_UART_EN;
@@ -2740,7 +2741,7 @@
{
if (!pci_present()) /* No PCI bus in this machine! */
return -ENODEV;
- printk(KERN_INFO "es1370: version v0.37 time " __TIME__ " " __DATE__ "\n");
+ printk(KERN_INFO "es1370: version v0.38 time " __TIME__ " " __DATE__ "\n");
return pci_module_init(&es1370_driver);
}

--- sound/oss/es1371.c.orig 2003-01-03 22:24:47.000000000 +0100
+++ sound/oss/es1371.c 2003-01-03 22:31:53.000000000 +0100
@@ -3,7 +3,7 @@
/*
* es1371.c -- Creative Ensoniq ES1371.
*
- * Copyright (C) 1998-2001 Thomas Sailer (t.sailer@alumni.ethz.ch)
+ * Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -104,6 +104,7 @@
* 31.01.2001 0.30 Register/Unregister gameport
* Fix SETTRIGGER non OSS API conformity
* 14.07.2001 0.31 Add list of laptops needing amplifier control
+ * 03.01.2003 0.32 open_mode fixes from Georg Acher <acher@in.tum.de>
*/

/*****************************************************************************/
@@ -1995,7 +1996,7 @@
stop_adc(s);
dealloc_dmabuf(s, &s->dma_adc);
}
- s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
+ s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
up(&s->open_sem);
wake_up(&s->open_wait);
unlock_kernel();
@@ -2675,7 +2676,7 @@
set_current_state(TASK_RUNNING);
}
down(&s->open_sem);
- s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
+ s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
s->ctrl &= ~CTRL_UART_EN;
@@ -3044,7 +3045,7 @@
{
if (!pci_present()) /* No PCI bus in this machine! */
return -ENODEV;
- printk(KERN_INFO PFX "version v0.30 time " __TIME__ " " __DATE__ "\n");
+ printk(KERN_INFO PFX "version v0.32 time " __TIME__ " " __DATE__ "\n");
return pci_module_init(&es1371_driver);
}

--- sound/oss/esssolo1.c.orig 2003-01-02 04:21:09.000000000 +0100
+++ sound/oss/esssolo1.c 2003-01-03 22:40:43.000000000 +0100
@@ -3,7 +3,7 @@
/*
* esssolo1.c -- ESS Technology Solo1 (ES1946) audio driver.
*
- * Copyright (C) 1998-2001 Thomas Sailer (t.sailer@alumni.ethz.ch)
+ * Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -82,6 +82,7 @@
* 22.05.2001 0.19 more cleanups, changed PM to PCI 2.4 style, got rid
* of global list of devices, using pci device data.
* Marcus Meissner <mm@caldera.de>
+ * 03.01.2003 0.20 open_mode fixes from Georg Acher <acher@in.tum.de>
*/

/*****************************************************************************/
@@ -1986,7 +1987,7 @@
set_current_state(TASK_RUNNING);
}
down(&s->open_sem);
- s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
+ s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
outb(0x30, s->iobase + 7); /* enable A1, A2 irq's */
@@ -2461,7 +2462,7 @@
{
if (!pci_present()) /* No PCI bus in this machine! */
return -ENODEV;
- printk(KERN_INFO "solo1: version v0.19 time " __TIME__ " " __DATE__ "\n");
+ printk(KERN_INFO "solo1: version v0.20 time " __TIME__ " " __DATE__ "\n");
if (!pci_register_driver(&solo1_driver)) {
pci_unregister_driver(&solo1_driver);
return -ENODEV;
--- sound/oss/sonicvibes.c.orig 2003-01-02 04:21:53.000000000 +0100
+++ sound/oss/sonicvibes.c 2003-01-03 22:44:52.000000000 +0100
@@ -3,7 +3,7 @@
/*
* sonicvibes.c -- S3 Sonic Vibes audio driver.
*
- * Copyright (C) 1998-2001 Thomas Sailer (t.sailer@alumni.ethz.ch)
+ * Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -94,6 +94,7 @@
* Fix SETTRIGGER non OSS API conformity
* 18.05.2001 0.30 PCI probing and error values cleaned up by Marcus
* Meissner <mm@caldera.de>
+ * 03.01.2003 0.31 open_mode fixes from Georg Acher <acher@in.tum.de>
*
*/

@@ -1969,7 +1970,7 @@
stop_adc(s);
dealloc_dmabuf(s, &s->dma_adc);
}
- s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
+ s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
wake_up(&s->open_wait);
up(&s->open_sem);
unlock_kernel();
@@ -2245,7 +2246,7 @@
set_current_state(TASK_RUNNING);
}
down(&s->open_sem);
- s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
+ s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
outb(inb(s->ioenh + SV_CODEC_INTMASK) & ~SV_CINTMASK_MIDI, s->ioenh + SV_CODEC_INTMASK);
@@ -2725,7 +2726,7 @@
{
if (!pci_present()) /* No PCI bus in this machine! */
return -ENODEV;
- printk(KERN_INFO "sv: version v0.30 time " __TIME__ " " __DATE__ "\n");
+ printk(KERN_INFO "sv: version v0.31 time " __TIME__ " " __DATE__ "\n");
#if 0
if (!(wavetable_mem = __get_free_pages(GFP_KERNEL, 20-PAGE_SHIFT)))
printk(KERN_INFO "sv: cannot allocate 1MB of contiguous nonpageable memory for wavetable data\n");
--- sound/oss/cmpci.c.orig 2003-01-02 04:22:17.000000000 +0100
+++ sound/oss/cmpci.c 2003-01-03 22:38:48.000000000 +0100
@@ -82,6 +82,7 @@
* - speaker mixer support
* Mon Aug 13 2001
* - optimizations and cleanups
+ * 03/01/2003 - open_mode fixes from Georg Acher <acher@in.tum.de>
*
*/
/*****************************************************************************/
@@ -2272,7 +2273,7 @@
stop_adc(s);
dealloc_dmabuf(&s->dma_adc);
}
- s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
+ s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
up(&s->open_sem);
wake_up(&s->open_wait);
unlock_kernel();
@@ -2540,7 +2541,7 @@
set_current_state(TASK_RUNNING);
}
down(&s->open_sem);
- s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
+ s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
del_timer(&s->midi.timer);

-- 
-
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Next message: Hell.Surfers@cwctv.net: "RE:Re: Why is Nvidia given GPL'd code to use in non-free drivers?"
Previous message: Matthew D. Pitts: "Re: Why is Nvidia given GPL'd code to use in non-free drivers?"