diff options
| author |   David Gibson <david@gibson.dropbear.id.au> | 2007-09-18 22:46:28 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-09-19 11:24:17 -0700 |
| commit | 2e3e31c05798786c131bf257f64848d4a9a894ab (patch) | |
| tree | 152aa226a482c76c8e5dafeaf6f2c9f88bb90cd8 /drivers/rtc | |
| parent | Fix UTS corruption during clone(CLONE_NEWUTS) (diff) | |
| download | linux-dev-2e3e31c05798786c131bf257f64848d4a9a894ab.tar.xz linux-dev-2e3e31c05798786c131bf257f64848d4a9a894ab.zip | |
rtc-ds1742.c should use resource_size_t for base address
Currently the rtc driver, rtc-ds1742.c uses an unsigned long to store the
base mmio address of the NVRAM/RTC. This breaks on systems like PowerPC
440, which is a 32-bit core with 36-bit physical addresses: IO on the
system, including the RTC, is typically above the 4GB point, and cannot fit
into an unsigned long.
This patch fixes the problem by replacing the unsigned long with a
resource_size_t. Tested on Ebony (PPC440) (with additional patches to
instantiate the ds1742 platform device appropriately).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-ds1742.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c index b2e5481ba3b6..67291b0f8283 100644 --- a/drivers/rtc/rtc-ds1742.c +++ b/drivers/rtc/rtc-ds1742.c @@ -55,7 +55,7 @@ struct rtc_plat_data { void __iomem *ioaddr_rtc; size_t size_nvram; size_t size; - unsigned long baseaddr; + resource_size_t baseaddr; unsigned long last_jiffies; }; |