A ZIP or similar with unformatted media will cause crashes when attempts are made to read/write it in some cases. This is because bs_factor is zero and we divide by it causing an oops. As the size of a non-accessible/non-existant media is really a bit of a zen question it doesn't matter if non-existant media is 512 bytes per sector or zero. Setting it to 1 causes us to generate 512 bytes/sector accesses and error properly. Signed-off-by: Alan Cox <alan@xxxxxxxxxx> Based on a fix found lurking in an ancient bugzilla entry since about 2004 (ugghhh) diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.20-rc6-mm3/drivers/ide/ide-floppy.c linux-2.6.20-rc6-mm3/drivers/ide/ide-floppy.c --- linux.vanilla-2.6.20-rc6-mm3/drivers/ide/ide-floppy.c 2007-01-31 14:20:40.000000000 +0000 +++ linux-2.6.20-rc6-mm3/drivers/ide/ide-floppy.c 2007-01-31 14:33:42.000000000 +0000 @@ -1434,7 +1434,8 @@ drive->bios_cyl = 0; drive->bios_head = drive->bios_sect = 0; - floppy->blocks = floppy->bs_factor = 0; + floppy->blocks = 0; + floppy->bs_factor = 1; set_capacity(floppy->disk, 0); idefloppy_create_read_capacity_cmd(&pc); - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
