4 files changed, 13 insertions, 3 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 7ae662334835..0faae3098295 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -385,7 +385,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
         struct gendisk *disk = floppy->disk;
         struct ide_atapi_pc pc;
         u8 *cap_desc;
-        u8 header_len, desc_cnt;
+        u8 pc_buf[256], header_len, desc_cnt;
         int i, rc = 1, blocks, length;
 
         drive->bios_cyl = 0;
@@ -395,6 +395,9 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
         drive->capacity64 = 0;
 
         ide_floppy_create_read_capacity_cmd(&pc);
+        pc.buf = &pc_buf[0];
+        pc.buf_size = sizeof(pc_buf);
+
         if (ide_queue_pc_tail(drive, disk, &pc)) {
                 printk(KERN_ERR PFX "Can't get floppy parameters\n");
                 return 1;
diff --git a/drivers/ide/ide-floppy_ioctl.c b/drivers/ide/ide-floppy_ioctl.c
index 8f8be8546038..cd8a42027ede 100644
--- a/drivers/ide/ide-floppy_ioctl.c
+++ b/drivers/ide/ide-floppy_ioctl.c
@@ -36,9 +36,9 @@ static int ide_floppy_get_format_capacities(ide_drive_t *drive,
                                             int __user *arg)
 {
         struct ide_disk_obj *floppy = drive->driver_data;
-        u8 header_len, desc_cnt;
         int i, blocks, length, u_array_size, u_index;
         int __user *argp;
+        u8 pc_buf[256], header_len, desc_cnt;
 
         if (get_user(u_array_size, arg))
                 return -EFAULT;
@@ -47,6 +47,9 @@ static int ide_floppy_get_format_capacities(ide_drive_t *drive,
                 return -EINVAL;
 
         ide_floppy_create_read_capacity_cmd(pc);
+        pc->buf = &pc_buf[0];
+        pc->buf_size = sizeof(pc_buf);
+
         if (ide_queue_pc_tail(drive, floppy->disk, pc)) {
                 printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
                 return -EIO;
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 64dfa7458f8d..cafc67d9e2e8 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -2014,9 +2014,13 @@ static void idetape_get_inquiry_results(ide_drive_t *drive)
 {
         idetape_tape_t *tape = drive->driver_data;
         struct ide_atapi_pc pc;
+        u8 pc_buf[256];
         char fw_rev[4], vendor_id[8], product_id[16];
 
         idetape_create_inquiry_cmd(&pc);
+        pc.buf = &pc_buf[0];
+        pc.buf_size = sizeof(pc_buf);
+
         if (ide_queue_pc_tail(drive, tape->disk, &pc)) {
                 printk(KERN_ERR "ide-tape: %s: can't get INQUIRY results\n",
                                 tape->name);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 03c520917b7a..0f48fbd46028 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -377,7 +377,7 @@ enum {
  * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes.
  * This is used for several packet commands (not for READ/WRITE commands).
  */
-#define IDE_PC_BUFFER_SIZE      256
+#define IDE_PC_BUFFER_SIZE      64
 #define ATAPI_WAIT_PC           (60 * HZ)
 
 struct ide_atapi_pc {