Currently we are not checking if attach has succeeded or not. Also parport_register_driver() always return 0 even if attach fails. But in many places where attach has been used, it can fail. So, modified the parport code to check the return value of attach and accordingly return either 0 or error code from parport_register_driver.
Sudip Mukherjee (14): parport: return value of attach and parport_register_driver ALSA: portman2x4: return proper error values from attach ALSA: mts64: return proper error values from attach staging: panel: return proper error values from attach spi: lm70llp: return proper error values from attach spi: butterfly: return proper error values from attach [SCSI] ppa: return proper error values from attach [SCSI] imm: return proper error values from attach pps: return proper error values from attach pps: return proper error values from attach net: plip: return proper error values from attach i2c-parport: return proper error values from attach ppdev: return proper error values from attach char: lp: return proper error values from attach
drivers/char/lp.c | 16 +++++++++++----- drivers/char/ppdev.c | 10 +++++++--- drivers/i2c/busses/i2c-parport.c | 7 ++++--- drivers/net/plip/plip.c | 16 ++++++++++------ drivers/parport/share.c | 20 +++++++++++++++----- drivers/pps/clients/pps_parport.c | 7 ++++--- drivers/pps/generators/pps_gen_parport.c | 9 +++++---- drivers/scsi/imm.c | 4 ++-- drivers/scsi/ppa.c | 4 ++-- drivers/spi/spi-butterfly.c | 7 ++++--- drivers/spi/spi-lm70llp.c | 7 ++++--- drivers/staging/panel/panel.c | 11 ++++++----- include/linux/parport.h | 2 +- sound/drivers/mts64.c | 13 ++++++++----- sound/drivers/portman2x4.c | 15 ++++++++++----- 15 files changed, 93 insertions(+), 55 deletions(-)