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[PATCH] HID: intel-ish-hid: initialize ts_format.reserved

Started byJiri Kosina <jikos@kernel.org>
First post2016-11-05 16:20 +0100
Last post2016-11-05 18:10 +0100
Articles 2 — 2 participants

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  [PATCH] HID: intel-ish-hid: initialize ts_format.reserved Jiri Kosina <jikos@kernel.org> - 2016-11-05 16:20 +0100
    Re: [PATCH] HID: intel-ish-hid: initialize ts_format.reserved Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> - 2016-11-05 18:10 +0100

#1515563 — [PATCH] HID: intel-ish-hid: initialize ts_format.reserved

FromJiri Kosina <jikos@kernel.org>
Date2016-11-05 16:20 +0100
Subject[PATCH] HID: intel-ish-hid: initialize ts_format.reserved
Message-ID<sAaVb-13U-5@gated-at.bofh.it>
From: Jiri Kosina <jkosina@suse.cz>

ts_format.reserved is not used anywhere yet, but the compiler generates a 
warning when the struct's (uninitialized) field is being copied around

drivers/hid/intel-ish-hid/ipc/ipc.c: In function ‘write_ipc_from_queue’:
drivers/hid/intel-ish-hid/ipc/ipc.c:316: warning: ‘ts_format.reserved’ may be used uninitialized in this function

Avoid this by force-initializing the field to zero.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/intel-ish-hid/ipc/ipc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/intel-ish-hid/ipc/ipc.c b/drivers/hid/intel-ish-hid/ipc/ipc.c
index 0c9ac4d..417cd07 100644
--- a/drivers/hid/intel-ish-hid/ipc/ipc.c
+++ b/drivers/hid/intel-ish-hid/ipc/ipc.c
@@ -310,6 +310,7 @@ static int write_ipc_from_queue(struct ishtp_device *dev)
 						((uint32_t)tv_utc.tv_usec);
 		ts_format.ts1_source = HOST_SYSTEM_TIME_USEC;
 		ts_format.ts2_source = HOST_UTC_TIME_USEC;
+		ts_format.reserved = 0;
 
 		time_update.primary_host_time = usec_system;
 		time_update.secondary_host_time = usec_utc;
-- 
1.9.2

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#1515591

FromSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date2016-11-05 18:10 +0100
Message-ID<sAcDD-2cf-13@gated-at.bofh.it>
In reply to#1515563
On Sat, 2016-11-05 at 16:15 +0100, Jiri Kosina wrote:
> From: Jiri Kosina <jkosina@suse.cz>
> 
> ts_format.reserved is not used anywhere yet, but the compiler
> generates a 
> warning when the struct's (uninitialized) field is being copied
> around
> 
> drivers/hid/intel-ish-hid/ipc/ipc.c: In function
> ‘write_ipc_from_queue’:
> drivers/hid/intel-ish-hid/ipc/ipc.c:316: warning:
> ‘ts_format.reserved’ may be used uninitialized in this function
> 
> Avoid this by force-initializing the field to zero.
> 
> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

> ---
>  drivers/hid/intel-ish-hid/ipc/ipc.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/hid/intel-ish-hid/ipc/ipc.c b/drivers/hid/intel-
> ish-hid/ipc/ipc.c
> index 0c9ac4d..417cd07 100644
> --- a/drivers/hid/intel-ish-hid/ipc/ipc.c
> +++ b/drivers/hid/intel-ish-hid/ipc/ipc.c
> @@ -310,6 +310,7 @@ static int write_ipc_from_queue(struct
> ishtp_device *dev)
>                                                 ((uint32_t)tv_utc.tv_
> usec);
>                 ts_format.ts1_source = HOST_SYSTEM_TIME_USEC;
>                 ts_format.ts2_source = HOST_UTC_TIME_USEC;
> +               ts_format.reserved = 0;
>  
>                 time_update.primary_host_time = usec_system;
>                 time_update.secondary_host_time = usec_utc;
> -- 
> 1.9.2
> 

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