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authorIngo Molnar <mingo@elte.hu>2008-12-29 09:45:15 +0100
committerIngo Molnar <mingo@elte.hu>2008-12-29 09:45:15 +0100
commite1df957670aef74ffd9a4ad93e6d2c90bf6b4845 (patch)
treebca1fcfef55b3e3e82c9a822b4ac6428fce2b419 /drivers/rtc/rtc-isl1208.c
parentx86: perf_counter remove unwanted hw_perf_enable_all (diff)
parentMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/p... (diff)
downloadlinux-e1df957670aef74ffd9a4ad93e6d2c90bf6b4845.tar.xz
linux-e1df957670aef74ffd9a4ad93e6d2c90bf6b4845.zip
Merge branch 'linus' into perfcounters/core
Conflicts: fs/exec.c include/linux/init_task.h Simple context conflicts.
Diffstat (limited to 'drivers/rtc/rtc-isl1208.c')
-rw-r--r--drivers/rtc/rtc-isl1208.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 2cd77ab8fc66..054e05294af8 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -328,6 +328,13 @@ isl1208_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm)
int sr;
u8 regs[ISL1208_RTC_SECTION_LEN] = { 0, };
+ /* The clock has an 8 bit wide bcd-coded register (they never learn)
+ * for the year. tm_year is an offset from 1900 and we are interested
+ * in the 2000-2099 range, so any value less than 100 is invalid.
+ */
+ if (tm->tm_year < 100)
+ return -EINVAL;
+
regs[ISL1208_REG_SC] = bin2bcd(tm->tm_sec);
regs[ISL1208_REG_MN] = bin2bcd(tm->tm_min);
regs[ISL1208_REG_HR] = bin2bcd(tm->tm_hour) | ISL1208_REG_HR_MIL;