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>

1 files changed, 13 insertions, 11 deletions

diff --git a/drivers/ide/ide-floppy_ioctl.c b/drivers/ide/ide-floppy_ioctl.c
index 0d2c9f0368da..7a03d34bc240 100644
--- a/drivers/ide/ide-floppy_ioctl.c
+++ b/drivers/ide/ide-floppy_ioctl.c
@@ -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: