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ide-floppy/ide_floppy_format_unit: use local buffer 

Pass the buffer into ide_floppy_create_format_unit_cmd instead of using
pc->buf.

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 2009-05-02 10:53:10 +02:00
parent 802e663427
commit 5122e5174f
1 changed files with 13 additions and 11 deletions
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24
drivers/ide/ide-floppy_ioctl.c
View File

@ -93,24 +93,25 @@ static int ide_floppy_get_format_capacities(ide_drive_t *drive,
return 0;
}
static void ide_floppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b,
int l, int flags)
static void ide_floppy_create_format_unit_cmd(struct ide_atapi_pc *pc,
u8 *buf, int b, int l,
int flags)
{
ide_init_pc(pc);
pc->c[0] = GPCMD_FORMAT_UNIT;
pc->c[1] = 0x17;
memset(pc->buf, 0, 12);
pc->buf[1] = 0xA2;
memset(buf, 0, 12);
buf[1] = 0xA2;
/* Default format list header, u8 1: FOV/DCRT/IMM bits set */
if (flags & 1) /* Verify bit on... */
pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */
pc->buf[3] = 8;
buf[1] ^= 0x20; /* ... turn off DCRT bit */
buf[3] = 8;
put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4]));
put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8]));
pc->buf_size = 12;
put_unaligned(cpu_to_be32(b), (unsigned int *)(&buf[4]));
put_unaligned(cpu_to_be32(l), (unsigned int *)(&buf[8]));
pc->req_xfer = 12;
pc->flags |= PC_FLAG_WRITING;
}
@ -137,6 +138,7 @@ static int ide_floppy_format_unit(ide_drive_t *drive, struct ide_atapi_pc *pc,
int __user *arg)
{
struct ide_disk_obj *floppy = drive->driver_data;
u8 buf[12];
int blocks, length, flags, err = 0;
if (floppy->openers > 1) {
@ -170,9 +172,9 @@ static int ide_floppy_format_unit(ide_drive_t *drive, struct ide_atapi_pc *pc,
}
ide_floppy_get_sfrp_bit(drive, pc);
ide_floppy_create_format_unit_cmd(pc, blocks, length, flags);
ide_floppy_create_format_unit_cmd(pc, buf, blocks, length, flags);
if (ide_queue_pc_tail(drive, floppy->disk, pc, pc->buf, pc->req_xfer))
if (ide_queue_pc_tail(drive, floppy->disk, pc, buf, pc->req_xfer))
err = -EIO;
out: