[LinuxPPS] 15 Feb 23:04 - libata: clear TF before IDENTIFYing

[linuxpps: Tejun Heo <>]

libata: clear TF before IDENTIFYing  
  
Some devices chock if Feature is not clear when IDENTIFY is issued.  
Set ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE for IDENTIFY such that whole  
TF is cleared when reading ID data.  
  
Kudos to Art Haas for testing various futile patches over several  
months and Mark Lord for pointing out the fix.  
  
Signed-off-by: Tejun Heo   
Cc: Art Haas   
Cc: Mark Lord   
Signed-off-by: Jeff Garzik   
  
drivers/ata/libata-core.c

URL: http://gitweb.enneenne.com/?p=linuxpps;a=commit;h=81afe893181b283f9d182ea8637ce6ccdbe1a56a