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ide-tape/ide_tape_get_bsize_from_bdesc: use local buffer

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There should be no functional change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
This commit is contained in:
Borislav Petkov 2009-05-04 09:48:57 +02:00
parent 60cfab85da
commit 837272b4f9
1 changed files with 6 additions and 5 deletions
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11
drivers/ide/ide-tape.c
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@ -1456,9 +1456,10 @@ static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive)
{ {
idetape_tape_t *tape = drive->driver_data; idetape_tape_t *tape = drive->driver_data;
struct ide_atapi_pc pc; struct ide_atapi_pc pc;
u8 buf[12];
idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR); idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR);
if (ide_queue_pc_tail(drive, tape->disk, &pc, pc.buf, pc.req_xfer)) { if (ide_queue_pc_tail(drive, tape->disk, &pc, buf, pc.req_xfer)) {
printk(KERN_ERR "ide-tape: Can't get block descriptor\n"); printk(KERN_ERR "ide-tape: Can't get block descriptor\n");
if (tape->blk_size == 0) { if (tape->blk_size == 0) {
printk(KERN_WARNING "ide-tape: Cannot deal with zero " printk(KERN_WARNING "ide-tape: Cannot deal with zero "
@ -1467,10 +1468,10 @@ static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive)
} }
return; return;
} }
tape->blk_size = (pc.buf[4 + 5] << 16) + tape->blk_size = (buf[4 + 5] << 16) +
(pc.buf[4 + 6] << 8) + (buf[4 + 6] << 8) +
pc.buf[4 + 7]; buf[4 + 7];
tape->drv_write_prot = (pc.buf[2] & 0x80) >> 7; tape->drv_write_prot = (buf[2] & 0x80) >> 7;
} }
static int idetape_chrdev_open(struct inode *inode, struct file *filp) static int idetape_chrdev_open(struct inode *inode, struct file *filp)