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authorDae S. Kim <dae@velatum.com>2012-08-31 02:00:51 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-02 10:29:52 -0700
commit6252fbdc0a40c20a21b24d7bfccf3c08ea9b10dc (patch)
tree8034a8d9764257a0ee232f5f59170f5f7a4830ea
parent8cc876def310b034ab0e0775a14d1a49472d7f5f (diff)
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Staging: Android alarm: IOCTL command encoding fix
commit 6bd4a5d96c08dc2380f8053b1bd4f879f55cd3c9 upstream. Fixed a bug. Data was being written to user space using an IOCTL command encoded with _IOC_WRITE access mode. Signed-off-by: Dae S. Kim <dae@velatum.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/staging/android/android_alarm.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/staging/android/android_alarm.h b/drivers/staging/android/android_alarm.h
index 6eecbde2ef6..66b6e3decc6 100644
--- a/drivers/staging/android/android_alarm.h
+++ b/drivers/staging/android/android_alarm.h
@@ -110,10 +110,12 @@ enum android_alarm_return_flags {
#define ANDROID_ALARM_WAIT _IO('a', 1)
#define ALARM_IOW(c, type, size) _IOW('a', (c) | ((type) << 4), size)
+#define ALARM_IOR(c, type, size) _IOR('a', (c) | ((type) << 4), size)
+
/* Set alarm */
#define ANDROID_ALARM_SET(type) ALARM_IOW(2, type, struct timespec)
#define ANDROID_ALARM_SET_AND_WAIT(type) ALARM_IOW(3, type, struct timespec)
-#define ANDROID_ALARM_GET_TIME(type) ALARM_IOW(4, type, struct timespec)
+#define ANDROID_ALARM_GET_TIME(type) ALARM_IOR(4, type, struct timespec)
#define ANDROID_ALARM_SET_RTC _IOW('a', 5, struct timespec)
#define ANDROID_ALARM_BASE_CMD(cmd) (cmd & ~(_IOC(0, 0, 0xf0, 0)))
#define ANDROID_ALARM_IOCTL_TO_TYPE(cmd) (_IOC_NR(cmd) >> 4)