Commit a4550b28 authored by Kai Mäkisara's avatar Kai Mäkisara Committed by Martin K. Petersen
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scsi: st: New session only when Unit Attention for new tape 



Currently the code starts new tape session when any Unit Attention
(UA) is seen when opening the device. This leads to incorrectly
clearing pos_unknown when the UA is for reset. Set new session only
when the UA is for a new tape.

Signed-off-by: default avatarKai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20241106095723.63254-4-Kai.Makisara@kolumbus.fi


Reviewed-by: default avatarJohn Meneghini <jmeneghi@redhat.com>
Tested-by: default avatarJohn Meneghini <jmeneghi@redhat.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 0b120edb

drivers/scsi/st.c

+4 −1
Original line number Diff line number Diff line
@@ -991,7 +991,10 @@ static int test_ready(struct scsi_tape *STp, int do_wait) 
			scode = cmdstatp->sense_hdr.sense_key;



			if (scode == UNIT_ATTENTION) { /* New media? */

				if (cmdstatp->sense_hdr.asc == 0x28) { /* New media */

					new_session = 1;

					DEBC_printk(STp, "New tape session.");

				}

				if (attentions < MAX_ATTENTIONS) {

					attentions++;

					continue;