Fixes checkpatch warning "Comparison to NULL could be written [...]".

Signed-off-by: Simon Sandström <simon@nikanor.nu>
Link: https://lore.kernel.org/r/20190704060811.10330-4-simon@nikanor.nu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch warning "Comparison to NULL could be written [...]".

Signed-off-by: Simon Sandström <simon@nikanor.nu>
Link: https://lore.kernel.org/r/20190704060811.10330-3-simon@nikanor.nu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes checkpatch warning "Comparison to NULL could be written [...]".

Signed-off-by: Simon Sandström <simon@nikanor.nu>
Link: https://lore.kernel.org/r/20190704060811.10330-2-simon@nikanor.nu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes issues found by checkpatch:

- "WARNING: braces {} are not necessary for single statement blocks"
- "WARNING: braces {} are not necessary for any arm of this statement"

Signed-off-by: Simon Sandström <simon@nikanor.nu>
Link: https://lore.kernel.org/r/20190701091819.18528-1-simon@nikanor.nu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The i2c-dev module is for access to I2C buses from user-space.
Kernel drivers do not care about its presence.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The unconditioned jump will prohibit to ever reach the break-statement.
Deleting this needless statement, the code becomes more understandable.

Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Instead of using the function name hard coded as string, using __func__
and the '%s'-placeholder will always give the current name of the
function. When renaming a function, the debugging-messages won't have to
be rewritten.

Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replaced 'unsigned' with it's equivalent 'unsigned int' to reduce
confusion while reading the code.

Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replaced __attribute__((packed)) with __packed. Both ways of attributing
are equivalent, but being shorter, __packed should be preferred.
This refactoring makes the core more readable.

Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

After the declarations in a function, there should be a blank line, so
that the declaration part is visibly separated from the rest.
This refactoring makes the code more readable.

Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>