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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-07 14:40:55 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-07 14:40:55 (GMT) |
| commit | 44d84afa834b799560d7dbe47250ad7557f5ca2f (patch) | |
| tree | d18b90078503c956d32f9f0c6524bc43ece96b25 /drivers/watchdog | |
| parent | f8201abcb2badce7eaa6a3715f9a228cfd88a453 (diff) | |
| parent | 11b55da700eb77905f1c2dde3a0cbeedc665a753 (diff) | |
| download | linux-fsl-qoriq-44d84afa834b799560d7dbe47250ad7557f5ca2f.tar.xz | |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (28 commits)
powerpc: Fix oops when loading modules
powerpc: Wire up preadv and pwritev
powerpc/ftrace: Fix printf format warning
powerpc/ftrace: Fix #if that should be #ifdef
powerpc: Fix ptrace compat wrapper for FPU register access
powerpc: Print information about mapping hw irqs to virtual irqs
powerpc: Correct dependency of KEXEC
powerpc: Disable VSX or current process in giveup_fpu/altivec
powerpc/pseries: Enable relay in pseries_defconfig
powerpc/pseries: Fix ibm,client-architecture comment
powerpc/pseries: Scan for all events in rtasd
powerpc/pseries: Add dispatch dispersion statistics
powerpc: Clean up some prom printouts
powerpc: Print progress of ibm,client-architecture method
powerpc: Remove duplicated #include's
powerpc/pmac: Fix internal modem IRQ on Wallstreet PowerBook
powerpc/wdrtas: Update wdrtas_get_interval to use rtas_data_buf
fsl-diu-fb: Pass the proper device for dma mapping routines
powerpc/pq2fads: Update device tree for use with device-tree-aware u-boot.
cpm_uart: Disable CPM udbg when re-initing CPM uart, even if not the console.
...
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/wdrtas.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c index 5d3b1a8..a38fa49 100644 --- a/drivers/watchdog/wdrtas.c +++ b/drivers/watchdog/wdrtas.c @@ -106,6 +106,8 @@ static int wdrtas_set_interval(int interval) return result; } +#define WDRTAS_SP_SPI_LEN 4 + /** * wdrtas_get_interval - returns the current watchdog interval * @fallback_value: value (in seconds) to use, if the RTAS call fails @@ -119,10 +121,17 @@ static int wdrtas_set_interval(int interval) static int wdrtas_get_interval(int fallback_value) { long result; - char value[4]; + char value[WDRTAS_SP_SPI_LEN]; + spin_lock(&rtas_data_buf_lock); + memset(rtas_data_buf, 0, WDRTAS_SP_SPI_LEN); result = rtas_call(wdrtas_token_get_sp, 3, 1, NULL, - WDRTAS_SP_SPI, (void *)__pa(&value), 4); + WDRTAS_SP_SPI, __pa(rtas_data_buf), + WDRTAS_SP_SPI_LEN); + + memcpy(value, rtas_data_buf, WDRTAS_SP_SPI_LEN); + spin_unlock(&rtas_data_buf_lock); + if (value[0] != 0 || value[1] != 2 || value[3] != 0 || result < 0) { printk(KERN_WARNING "wdrtas: could not get sp_spi watchdog " "timeout (%li). Continuing\n", result); |