3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: "Dae S. Kim" <d...@velatum.com>
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 <d...@velatum.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/android/android_alarm.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- 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)
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