linux-stable.git/drivers/staging/most/aim-cdev, branch v4.6

staging: most: return error value

2016-02-12T03:40:02+00:00

On error we were returning retval, but retval is not having the error
value. We will get the error value using PTR_ERR.

Signed-off-by: Sudip Mukherjee 
Signed-off-by: Greg Kroah-Hartman

staging: most: remove 2nd forward declaration of struct most_aim

2016-02-08T01:34:58+00:00

This patch removes the second forwared declaration of struct most_aim.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: rearrange function aim_write

2016-02-08T01:34:58+00:00

This patch straightens and rearranges the code of function aim_write()
of module aim-cdev.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: remove stacked_mbo

2016-02-08T01:34:58+00:00

This patch makes use of kfifo_peek and kfifo_skip, which renders the
variable stacked_mbo useless. It is therefore removed.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: change type of access_ref

2016-02-08T01:34:58+00:00

This patch changes the type of the access reference from atomit_t to int.
It is needed, because the reference variable is secured by synchronization
locks and does not need to be atomic anymore.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: fix race conditions

2016-02-08T01:34:58+00:00

This patch fixes race conditions that might emerge from functions
aim_open, aim_close, aim_read, aim_write and aim_disconnect_channel
within module cdev.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: rename variable channel

2016-02-08T01:34:58+00:00

This patch renames the variable 'channel' to 'c'. This is needed to have
the code look more homogeneous and to prevent format violations.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: fix retrieval of buffer availability

2016-02-08T01:34:58+00:00

This patch fixes the function channel_has_mbo that delivers the false
information in case two AIMs are using the same tx channel.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: encapsulate shared code

2016-02-08T01:34:58+00:00

This patch encapsulates shared code. It therefore creates the new functions
stop_channel and destroy_cdev.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman

staging: most: remove redundant call to wake_up_interruptible

2016-02-08T01:34:58+00:00

This patch prevents the cdev module from rousing the channel wait queue in
case the channel is about to be closed. It is safe to do so, because the
application can not be waiting within read or write and at the same time
be calling close.

Signed-off-by: Christian Gromm 
Signed-off-by: Greg Kroah-Hartman