[4.2.y-ckt stable] Patch "ALSA: dice: correct variable types for __be32 data" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    ALSA: dice: correct variable types for __be32 data

to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue

This patch is scheduled to be released in version 4.2.8-ckt1.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 4.2.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 5c5c9aaf4fa7f72b877e978de4bf21d2db11d35a Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi at sakamocchi.jp>
Date: Sun, 18 Oct 2015 22:39:49 +0900
Subject: ALSA: dice: correct variable types for __be32 data

commit 3e93d42a04eea4e621f87bfc51b0ab868e131cb9 upstream.

Some local variables in some functions are typed as unsigned int, while
__be32 value is assigned to them. This causes sparse warnings.

dice-stream.c:50:17: warning: incorrect type in assignment (different base types)
dice-stream.c:50:17:    expected unsigned int [unsigned] channel
dice-stream.c:50:17:    got restricted __be32 [usertype] <noident>
dice-stream.c:74:17: warning: incorrect type in assignment (different base types)
dice-stream.c:74:17:    expected unsigned int [unsigned] channel
dice-stream.c:74:17:    got restricted __be32 [usertype] <noident>

This commit fixes this bug.

Fixes: 288a8d0cb04f('ALSA: dice: Change the way to start stream')
Signed-off-by: Takashi Sakamoto <o-takashi at sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 sound/firewire/dice/dice-stream.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
index 07dbd01..d6ba4a3 100644
--- a/sound/firewire/dice/dice-stream.c
+++ b/sound/firewire/dice/dice-stream.c
@@ -44,16 +44,16 @@ int snd_dice_stream_get_rate_mode(struct snd_dice *dice, unsigned int rate,
 static void release_resources(struct snd_dice *dice,
 			      struct fw_iso_resources *resources)
 {
-	unsigned int channel;
+	__be32 channel;

 	/* Reset channel number */
 	channel = cpu_to_be32((u32)-1);
 	if (resources == &dice->tx_resources)
 		snd_dice_transaction_write_tx(dice, TX_ISOCHRONOUS,
-					      &channel, 4);
+					      &channel, sizeof(channel));
 	else
 		snd_dice_transaction_write_rx(dice, RX_ISOCHRONOUS,
-					      &channel, 4);
+					      &channel, sizeof(channel));

 	fw_iso_resources_free(resources);
 }
@@ -62,7 +62,7 @@ static int keep_resources(struct snd_dice *dice,
 			  struct fw_iso_resources *resources,
 			  unsigned int max_payload_bytes)
 {
-	unsigned int channel;
+	__be32 channel;
 	int err;

 	err = fw_iso_resources_allocate(resources, max_payload_bytes,
@@ -74,10 +74,10 @@ static int keep_resources(struct snd_dice *dice,
 	channel = cpu_to_be32(resources->channel);
 	if (resources == &dice->tx_resources)
 		err = snd_dice_transaction_write_tx(dice, TX_ISOCHRONOUS,
-						    &channel, 4);
+						    &channel, sizeof(channel));
 	else
 		err = snd_dice_transaction_write_rx(dice, RX_ISOCHRONOUS,
-						    &channel, 4);
+						    &channel, sizeof(channel));
 	if (err < 0)
 		release_resources(dice, resources);
 end:
--
1.9.1