Revision 48a7f7746875425797aea31ed2910088635c1c7a authored by Johannes Weiner on 01 December 2009, 21:17:48 UTC, committed by Linus Torvalds on 02 December 2009, 00:32:20 UTC
The possible CCR_Y2K register values are 19 or 20 and struct rtc_time's tm_year is in years since 1900. The function translating rtc_time to register values assumes tm_year to be years since first christmas, though, and we end up storing 0 or 1 in the CCR_Y2K register, which the hardware does not refuse to do. A subsequent probing of the clock fails due to the invalid value range in the register, though. [ And if it didn't, reading the clock would yield a bogus year because the function translating registers to tm_year is assuming a register value of 19 or 20. ] This fixes the conversion from years since 1900 in tm_year to the corresponding CCR_Y2K value of 19 or 20. Signed-off-by: Johannes Weiner <jw@emlix.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| ABI | ||
| DocBook | ||
| PCI | ||
| RCU | ||
| accounting | ||
| acpi | ||
| aoe | ||
| arm | ||
| auxdisplay | ||
| blackfin | ||
| block | ||
| blockdev | ||
| cdrom | ||
| cgroups | ||
| connector | ||
| console | ||
| cpu-freq | ||
| cpuidle | ||
| cris | ||
| crypto | ||
| development-process | ||
| device-mapper | ||
| driver-model | ||
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| early-userspace | ||
| fault-injection | ||
| fb | ||
| filesystems | ||
| firmware_class | ||
| frv | ||
| hwmon | ||
| i2c | ||
| i2o | ||
| ia64 | ||
| ide | ||
| infiniband | ||
| input | ||
| ioctl | ||
| isdn | ||
| ja_JP | ||
| kbuild | ||
| kdump | ||
| ko_KR | ||
| kvm | ||
| laptops | ||
| lguest | ||
| m68k | ||
| make | ||
| mips | ||
| misc-devices | ||
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| mtd | ||
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| parisc | ||
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| power | ||
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| sh | ||
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| sparc | ||
| spi | ||
| sysctl | ||
| telephony | ||
| thermal | ||
| timers | ||
| trace | ||
| uml | ||
| usb | ||
| video4linux | ||
| vm | ||
| w1 | ||
| watchdog | ||
| wimax | ||
| x86 | ||
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| 00-INDEX | -rw-r--r-- | 11.9 KB |
| BUG-HUNTING | -rw-r--r-- | 8.1 KB |
| Changes | -rw-r--r-- | 12.1 KB |
| CodingStyle | -rw-r--r-- | 29.1 KB |
| DMA-API.txt | -rw-r--r-- | 28.2 KB |
| DMA-ISA-LPC.txt | -rw-r--r-- | 5.2 KB |
| DMA-attributes.txt | -rw-r--r-- | 1.3 KB |
| DMA-mapping.txt | -rw-r--r-- | 27.3 KB |
| HOWTO | -rw-r--r-- | 28.6 KB |
| IO-mapping.txt | -rw-r--r-- | 7.9 KB |
| IPMI.txt | -rw-r--r-- | 27.0 KB |
| IRQ-affinity.txt | -rw-r--r-- | 2.1 KB |
| IRQ.txt | -rw-r--r-- | 962 bytes |
| Intel-IOMMU.txt | -rw-r--r-- | 3.8 KB |
| Makefile | -rw-r--r-- | 143 bytes |
| ManagementStyle | -rw-r--r-- | 12.9 KB |
| SAK.txt | -rw-r--r-- | 2.8 KB |
| SELinux.txt | -rw-r--r-- | 1.0 KB |
| SM501.txt | -rw-r--r-- | 2.8 KB |
| SecurityBugs | -rw-r--r-- | 1.8 KB |
| Smack.txt | -rw-r--r-- | 21.6 KB |
| SubmitChecklist | -rw-r--r-- | 3.5 KB |
| SubmittingDrivers | -rw-r--r-- | 6.2 KB |
| SubmittingPatches | -rw-r--r-- | 27.8 KB |
| VGA-softcursor.txt | -rw-r--r-- | 2.0 KB |
| applying-patches.txt | -rw-r--r-- | 19.5 KB |
| atomic_ops.txt | -rw-r--r-- | 19.0 KB |
| bad_memory.txt | -rw-r--r-- | 1.1 KB |
| basic_profiling.txt | -rw-r--r-- | 1.7 KB |
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| c2port.txt | -rw-r--r-- | 2.8 KB |
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| cpu-hotplug.txt | -rw-r--r-- | 14.6 KB |
| cpu-load.txt | -rw-r--r-- | 3.0 KB |
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| debugging-modules.txt | -rw-r--r-- | 954 bytes |
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| highuid.txt | -rw-r--r-- | 2.4 KB |
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| ics932s401 | -rw-r--r-- | 1018 bytes |
| initrd.txt | -rw-r--r-- | 14.1 KB |
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| java.txt | -rw-r--r-- | 10.7 KB |
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| kernel-docs.txt | -rw-r--r-- | 34.8 KB |
| kernel-parameters.txt | -rw-r--r-- | 88.1 KB |
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| keys.txt | -rw-r--r-- | 47.6 KB |
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| kref.txt | -rw-r--r-- | 6.1 KB |
| ldm.txt | -rw-r--r-- | 3.9 KB |
| leds-class.txt | -rw-r--r-- | 3.9 KB |
| leds-lp3944.txt | -rw-r--r-- | 1.5 KB |
| local_ops.txt | -rw-r--r-- | 6.1 KB |
| lockdep-design.txt | -rw-r--r-- | 8.8 KB |
| lockstat.txt | -rw-r--r-- | 7.9 KB |
| logo.gif | -rw-r--r-- | 16.0 KB |
| logo.txt | -rw-r--r-- | 563 bytes |
| magic-number.txt | -rw-r--r-- | 9.7 KB |
| mca.txt | -rw-r--r-- | 11.3 KB |
| md.txt | -rw-r--r-- | 20.8 KB |
| memory-barriers.txt | -rw-r--r-- | 79.6 KB |
| memory-hotplug.txt | -rw-r--r-- | 14.0 KB |
| memory.txt | -rw-r--r-- | 1.2 KB |
| mono.txt | -rw-r--r-- | 2.5 KB |
| mutex-design.txt | -rw-r--r-- | 5.8 KB |
| nmi_watchdog.txt | -rw-r--r-- | 4.2 KB |
| nommu-mmap.txt | -rw-r--r-- | 11.2 KB |
| numastat.txt | -rw-r--r-- | 866 bytes |
| oops-tracing.txt | -rw-r--r-- | 12.3 KB |
| parport-lowlevel.txt | -rw-r--r-- | 32.2 KB |
| parport.txt | -rw-r--r-- | 8.8 KB |
| pi-futex.txt | -rw-r--r-- | 5.7 KB |
| pnp.txt | -rw-r--r-- | 6.8 KB |
| preempt-locking.txt | -rw-r--r-- | 5.2 KB |
| printk-formats.txt | -rw-r--r-- | 1.0 KB |
| prio_tree.txt | -rw-r--r-- | 5.2 KB |
| rbtree.txt | -rw-r--r-- | 6.6 KB |
| rfkill.txt | -rw-r--r-- | 5.5 KB |
| robust-futex-ABI.txt | -rw-r--r-- | 8.7 KB |
| robust-futexes.txt | -rw-r--r-- | 9.4 KB |
| rt-mutex-design.txt | -rw-r--r-- | 32.8 KB |
| rt-mutex.txt | -rw-r--r-- | 3.5 KB |
| rtc.txt | -rw-r--r-- | 16.1 KB |
| serial-console.txt | -rw-r--r-- | 4.0 KB |
| sgi-ioc4.txt | -rw-r--r-- | 2.0 KB |
| sgi-visws.txt | -rw-r--r-- | 678 bytes |
| slow-work.txt | -rw-r--r-- | 11.5 KB |
| sparse.txt | -rw-r--r-- | 3.1 KB |
| spinlocks.txt | -rw-r--r-- | 8.8 KB |
| stable_api_nonsense.txt | -rw-r--r-- | 9.2 KB |
| stable_kernel_rules.txt | -rw-r--r-- | 2.8 KB |
| svga.txt | -rw-r--r-- | 14.1 KB |
| sysfs-rules.txt | -rw-r--r-- | 8.1 KB |
| sysrq.txt | -rw-r--r-- | 11.4 KB |
| tomoyo.txt | -rw-r--r-- | 2.2 KB |
| unaligned-memory-access.txt | -rw-r--r-- | 10.0 KB |
| unicode.txt | -rw-r--r-- | 6.5 KB |
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| vgaarbiter.txt | -rw-r--r-- | 8.1 KB |
| video-output.txt | -rw-r--r-- | 1.1 KB |
| volatile-considered-harmful.txt | -rw-r--r-- | 5.6 KB |
| voyager.txt | -rw-r--r-- | 3.4 KB |
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