linux.git/drivers/iio/multiplexer, branch v4.17.1

iio: multiplexer: add NULL check on devm_kzalloc() and devm_kmemdup() return values

2017-09-03T17:10:29+00:00

Check return values from call to devm_kzalloc() and devm_kmemup()
in order to prevent a NULL pointer dereference.

This issue was detected using Coccinelle and the following semantic patch:

@@
expression x;
identifier fld;
@@

* x = devm_kzalloc(...);
   ... when != x == NULL
   x->fld

Fixes: 7ba9df54b091 ("iio: multiplexer: new iio category and iio-mux driver")
Signed-off-by: Gustavo A. R. Silva 
Acked-by: Peter Rosin 
Signed-off-by: Jonathan Cameron

iio: multiplexer: drop the manual assignment of THIS_MODULE

2017-09-03T17:10:24+00:00

This is now done through some macro magic by the core.

Signed-off-by: Jonathan Cameron 
Acked-by: Peter Rosin

iio: multiplexer: new iio category and iio-mux driver

2017-06-03T10:29:26+00:00

When a multiplexer changes how an iio device behaves (for example
by feeding different signals to an ADC), this driver can be used
to create one virtual iio channel for each multiplexer state.

Depends on the generic multiplexer subsystem.

Cache any ext_info values from the parent iio channel, creating a private
copy of the ext_info attributes for each multiplexer state/channel.

Reviewed-by: Jonathan Cameron 
Signed-off-by: Peter Rosin 
Signed-off-by: Greg Kroah-Hartman