ide-floppy/ide_floppy_get_flexible_disk_page: use local buffer

There should be no functional change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index be21cf2..060c893 100644 (file)
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -311,33 +311,33 @@ static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive,
 {
        struct ide_disk_obj *floppy = drive->driver_data;
        struct gendisk *disk = floppy->disk;
-       u8 *page;
+       u8 *page, buf[40];
        int capacity, lba_capacity;
        u16 transfer_rate, sector_size, cyls, rpm;
        u8 heads, sectors;
 
        ide_floppy_create_mode_sense_cmd(pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE);
 
-       if (ide_queue_pc_tail(drive, disk, pc, pc->buf, pc->req_xfer)) {
+       if (ide_queue_pc_tail(drive, disk, pc, buf, pc->req_xfer)) {
                printk(KERN_ERR PFX "Can't get flexible disk page params\n");
                return 1;
        }
 
-       if (pc->buf[3] & 0x80)
+       if (buf[3] & 0x80)
                drive->dev_flags |= IDE_DFLAG_WP;
        else
                drive->dev_flags &= ~IDE_DFLAG_WP;
 
        set_disk_ro(disk, !!(drive->dev_flags & IDE_DFLAG_WP));
 
-       page = &pc->buf[8];
+       page = &buf[8];
 
-       transfer_rate = be16_to_cpup((__be16 *)&pc->buf[8 + 2]);
-       sector_size   = be16_to_cpup((__be16 *)&pc->buf[8 + 6]);
-       cyls          = be16_to_cpup((__be16 *)&pc->buf[8 + 8]);
-       rpm           = be16_to_cpup((__be16 *)&pc->buf[8 + 28]);
-       heads         = pc->buf[8 + 4];
-       sectors       = pc->buf[8 + 5];
+       transfer_rate = be16_to_cpup((__be16 *)&buf[8 + 2]);
+       sector_size   = be16_to_cpup((__be16 *)&buf[8 + 6]);
+       cyls          = be16_to_cpup((__be16 *)&buf[8 + 8]);
+       rpm           = be16_to_cpup((__be16 *)&buf[8 + 28]);
+       heads         = buf[8 + 4];
+       sectors       = buf[8 + 5];
 
        capacity = cyls * heads * sectors * sector_size;