The patch titled
via82cxxx: handle error condition properly
has been added to the -mm tree. Its filename is
via82cxxx-handle-error-condition-properly.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: via82cxxx: handle error condition properly
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Jeff noted that the via driver returned an error to an unsigned int in a
a case where errors are not permitted. Move the check down earlier so we
can handle it properly. Not as pretty but it works this way and avoids
hacking up ugly stuff in the legacy ide core.
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/ide/pci/via82cxxx.c | 21 ++++++++++++++++-----
1 files changed, 16 insertions(+), 5 deletions(-)
diff -puN drivers/ide/pci/via82cxxx.c~via82cxxx-handle-error-condition-properly drivers/ide/pci/via82cxxx.c
--- a/drivers/ide/pci/via82cxxx.c~via82cxxx-handle-error-condition-properly
+++ a/drivers/ide/pci/via82cxxx.c
@@ -282,11 +282,11 @@ static unsigned int __devinit init_chips
* Find the ISA bridge to see how good the IDE is.
*/
via_config = via_config_find(&isa);
- if (!via_config->id) {
- printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n");
- pci_dev_put(isa);
- return -ENODEV;
- }
+
+ /* We checked this earlier so if it fails here deeep badness
+ is involved */
+
+ BUG_ON(!via_config->id);
/*
* Setup or disable Clk66 if appropriate
@@ -494,6 +494,17 @@ static ide_pci_device_t via82cxxx_chipse
static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
+ struct pci_dev *isa = NULL;
+ struct via_isa_bridge *via_config;
+ /*
+ * Find the ISA bridge and check we know what it is.
+ */
+ via_config = via_config_find(&isa);
+ pci_dev_put(isa);
+ if (!via_config->id) {
+ printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n");
+ return -ENODEV;
+ }
return ide_setup_pci_device(dev, &via82cxxx_chipsets[id->driver_data]);
}
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
origin.patch
intel-fb-switch-to-pci_get-api.patch
git-libata-all.patch
ahci-readability-tweak.patch
libata-sff-allow-for-wacky-systems.patch
libata-revamp-blacklist-support-to-allow-multiple-kinds.patch
pata_marvell-marvell-6101-6145-pata-driver.patch
via-pata-controller-xfer-fixes.patch
ahci-ati-sb600-sata-support-for-various-modes.patch
esb2rom-use-hotplug-safe-interfaces.patch
nicstar-fix-a-bogus-casting-warning.patch
resend-iphase-64bit-cleanup.patch
perle-multimodem-card-pci-ras-detection.patch
make-sure-uart-is-powered-up-when-dumping-mctrl-status.patch
ioremap-balanced-with-iounmap-drivers-scsi-ncr53c8xxc.patch
drivers-scsi-ncr5380c-replacing-yield-with-a.patch
switch-fdomain-to-the-pci_get-api.patch
alpha-switch-to-pci_get-api.patch
edac-new-opteron-athlon64-memory-controller-driver.patch
serial-uartlite-driver.patch
serial-uartlite-driver-fix.patch
honour-mnt_noexec-for-access.patch
i2o-more-error-checking.patch
ia64-fix-allmodconfig-build.patch
ide-complete-switch-to-pci_get.patch
pci-mxser-pci-refcounts.patch
mxser-make-an-experimental-clone.patch
char-mxser_new-correct-include-file.patch
char-mxser_new-upgrade-to-191.patch
char-mxser_new-rework-to-allow-dynamic-structs.patch
char-mxser_new-eliminate-tty-ldisc-deref.patch
char-mxser_new-testbit-for-bit-testing.patch
char-mxser_new-correct-fail-paths.patch
char-mxser_new-dont-check-tty_unregister-retval.patch
char-mxser_new-compress-isa-finding.patch
char-mxser_new-register-tty-devices-on-the-fly.patch
char-mxser_new-compact-structures-round2.patch
char-mxser_new-reverse-if-else-paths-patch.patch
char-mxser_new-comments-cleanup.patch
char-mxser_new-correct-intr-handler-proto.patch
char-mxser_new-delete-ttys-and-termios.patch
char-mxser_new-pci-probing.patch
char-stallion-use-pr_debug-macro.patch
char-stallion-remove-unneeded-casts.patch
char-stallion-kill-typedefs.patch
char-stallion-move-init-deinit.patch
char-stallion-uninline-functions.patch
char-stallion-mark-functions-as-init.patch
char-stallion-remove-many-prototypes.patch
ide-hpt3xxn-clocking-fixes.patch
ide-fix-hpt37x-timing-tables.patch
ide-optimize-hpt37x-timing-tables.patch
ide-fix-hpt3xx-hotswap-support.patch
ide-fix-the-case-of-multiple-hpt3xx-chips-present.patch
ide-hpt3xx-fix-pci-clock-detection.patch
ide-hpt3xx-fix-pci-clock-detection-fix-2.patch
piix-fix-82371mx-enablebits.patch
piix-remove-check-for-broken-mw-dma-mode-0.patch
piix-slc90e66-pio-mode-fallback-fix.patch
hpt3xx-rework-rate-filtering.patch
hpt3xx-rework-rate-filtering-tidy.patch
hpt3xx-print-the-real-chip-name-at-startup.patch
hpt3xx-switch-to-using-pci_get_slot.patch
hpt3xx-cache-channels-mcr-address.patch
hpt3x7-merge-speedproc-handlers.patch
hpt370-clean-up-dma-timeout-handling.patch
hpt3xx-init-code-rewrite.patch
ide-more-conversion-to-pci_get-apis.patch
igafb-switch-to-pci_get-api.patch
x86-resend-remove-last-two-pci_find-offenders-in-the.patch
pata_marvell-switch-to-pci_iomap-as-jeff-asked.patch
via82cxxx-handle-error-condition-properly.patch
irq-updates-make-eata_pio-compile.patch
tty-preparatory-structures-for-termios-revamp.patch
tty-switch-to-ktermios-and-new-framework.patch
tty-switch-to-ktermios.patch
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